diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/credential-selector/credential-selector.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/credential-selector/credential-selector.tsx
index 79087c7c48..378a9baed3 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/credential-selector/credential-selector.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/credential-selector/credential-selector.tsx
@@ -35,6 +35,7 @@ interface CredentialSelectorProps {
   disabled?: boolean
   isPreview?: boolean
   previewValue?: any | null
+  previewContextValues?: Record<string, unknown>
 }
 
 export function CredentialSelector({
@@ -43,6 +44,7 @@ export function CredentialSelector({
   disabled = false,
   isPreview = false,
   previewValue,
+  previewContextValues,
 }: CredentialSelectorProps) {
   const [showOAuthModal, setShowOAuthModal] = useState(false)
   const [editingValue, setEditingValue] = useState('')
@@ -67,7 +69,11 @@ export function CredentialSelector({
     canUseCredentialSets
   )
 
-  const { depsSatisfied, dependsOn } = useDependsOnGate(blockId, subBlock, { disabled, isPreview })
+  const { depsSatisfied, dependsOn } = useDependsOnGate(blockId, subBlock, {
+    disabled,
+    isPreview,
+    previewContextValues,
+  })
   const hasDependencies = dependsOn.length > 0
 
   const effectiveDisabled = disabled || (hasDependencies && !depsSatisfied)
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/document-selector/document-selector.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/document-selector/document-selector.tsx
index 012c78338f..f1e47ab710 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/document-selector/document-selector.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/document-selector/document-selector.tsx
@@ -5,6 +5,7 @@ import { Tooltip } from '@/components/emcn'
 import { SelectorCombobox } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/selector-combobox/selector-combobox'
 import { useDependsOnGate } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-depends-on-gate'
 import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-value'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import type { SubBlockConfig } from '@/blocks/types'
 import type { SelectorContext } from '@/hooks/selectors/types'
 
@@ -33,7 +34,9 @@ export function DocumentSelector({
     previewContextValues,
   })
   const [knowledgeBaseIdFromStore] = useSubBlockValue(blockId, 'knowledgeBaseId')
-  const knowledgeBaseIdValue = previewContextValues?.knowledgeBaseId ?? knowledgeBaseIdFromStore
+  const knowledgeBaseIdValue = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.knowledgeBaseId)
+    : knowledgeBaseIdFromStore
   const normalizedKnowledgeBaseId =
     typeof knowledgeBaseIdValue === 'string' && knowledgeBaseIdValue.trim().length > 0
       ? knowledgeBaseIdValue
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/document-tag-entry/document-tag-entry.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/document-tag-entry/document-tag-entry.tsx
index ffb5122db9..b21c6f9d42 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/document-tag-entry/document-tag-entry.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/document-tag-entry/document-tag-entry.tsx
@@ -17,6 +17,7 @@ import { formatDisplayText } from '@/app/workspace/[workspaceId]/w/[workflowId]/
 import { TagDropdown } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tag-dropdown/tag-dropdown'
 import { useSubBlockInput } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-input'
 import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-value'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import { useAccessibleReferencePrefixes } from '@/app/workspace/[workspaceId]/w/[workflowId]/hooks/use-accessible-reference-prefixes'
 import type { SubBlockConfig } from '@/blocks/types'
 import { useKnowledgeBaseTagDefinitions } from '@/hooks/kb/use-knowledge-base-tag-definitions'
@@ -77,7 +78,9 @@ export function DocumentTagEntry({
   })
 
   const [knowledgeBaseIdFromStore] = useSubBlockValue(blockId, 'knowledgeBaseId')
-  const knowledgeBaseIdValue = previewContextValues?.knowledgeBaseId ?? knowledgeBaseIdFromStore
+  const knowledgeBaseIdValue = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.knowledgeBaseId)
+    : knowledgeBaseIdFromStore
   const knowledgeBaseId =
     typeof knowledgeBaseIdValue === 'string' && knowledgeBaseIdValue.trim().length > 0
       ? knowledgeBaseIdValue
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/file-selector/file-selector-input.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/file-selector/file-selector-input.tsx
index 6805e2ec4a..730f01b248 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/file-selector/file-selector-input.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/file-selector/file-selector-input.tsx
@@ -9,6 +9,7 @@ import { SelectorCombobox } from '@/app/workspace/[workspaceId]/w/[workflowId]/c
 import { useDependsOnGate } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-depends-on-gate'
 import { useForeignCredential } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-foreign-credential'
 import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-value'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import { getBlock } from '@/blocks/registry'
 import type { SubBlockConfig } from '@/blocks/types'
 import { isDependency } from '@/blocks/utils'
@@ -62,42 +63,56 @@ export function FileSelectorInput({
 
   const [domainValueFromStore] = useSubBlockValue(blockId, 'domain')
 
-  const connectedCredential = previewContextValues?.credential ?? blockValues.credential
-  const domainValue = previewContextValues?.domain ?? domainValueFromStore
+  const connectedCredential = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.credential)
+    : blockValues.credential
+  const domainValue = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.domain)
+    : domainValueFromStore
 
   const teamIdValue = useMemo(
     () =>
-      previewContextValues?.teamId ??
-      resolveDependencyValue('teamId', blockValues, canonicalIndex, canonicalModeOverrides),
-    [previewContextValues?.teamId, blockValues, canonicalIndex, canonicalModeOverrides]
+      previewContextValues
+        ? resolvePreviewContextValue(previewContextValues.teamId)
+        : resolveDependencyValue('teamId', blockValues, canonicalIndex, canonicalModeOverrides),
+    [previewContextValues, blockValues, canonicalIndex, canonicalModeOverrides]
   )
 
   const siteIdValue = useMemo(
     () =>
-      previewContextValues?.siteId ??
-      resolveDependencyValue('siteId', blockValues, canonicalIndex, canonicalModeOverrides),
-    [previewContextValues?.siteId, blockValues, canonicalIndex, canonicalModeOverrides]
+      previewContextValues
+        ? resolvePreviewContextValue(previewContextValues.siteId)
+        : resolveDependencyValue('siteId', blockValues, canonicalIndex, canonicalModeOverrides),
+    [previewContextValues, blockValues, canonicalIndex, canonicalModeOverrides]
   )
 
   const collectionIdValue = useMemo(
     () =>
-      previewContextValues?.collectionId ??
-      resolveDependencyValue('collectionId', blockValues, canonicalIndex, canonicalModeOverrides),
-    [previewContextValues?.collectionId, blockValues, canonicalIndex, canonicalModeOverrides]
+      previewContextValues
+        ? resolvePreviewContextValue(previewContextValues.collectionId)
+        : resolveDependencyValue(
+            'collectionId',
+            blockValues,
+            canonicalIndex,
+            canonicalModeOverrides
+          ),
+    [previewContextValues, blockValues, canonicalIndex, canonicalModeOverrides]
   )
 
   const projectIdValue = useMemo(
     () =>
-      previewContextValues?.projectId ??
-      resolveDependencyValue('projectId', blockValues, canonicalIndex, canonicalModeOverrides),
-    [previewContextValues?.projectId, blockValues, canonicalIndex, canonicalModeOverrides]
+      previewContextValues
+        ? resolvePreviewContextValue(previewContextValues.projectId)
+        : resolveDependencyValue('projectId', blockValues, canonicalIndex, canonicalModeOverrides),
+    [previewContextValues, blockValues, canonicalIndex, canonicalModeOverrides]
   )
 
   const planIdValue = useMemo(
     () =>
-      previewContextValues?.planId ??
-      resolveDependencyValue('planId', blockValues, canonicalIndex, canonicalModeOverrides),
-    [previewContextValues?.planId, blockValues, canonicalIndex, canonicalModeOverrides]
+      previewContextValues
+        ? resolvePreviewContextValue(previewContextValues.planId)
+        : resolveDependencyValue('planId', blockValues, canonicalIndex, canonicalModeOverrides),
+    [previewContextValues, blockValues, canonicalIndex, canonicalModeOverrides]
   )
 
   const normalizedCredentialId =
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/folder-selector/components/folder-selector-input.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/folder-selector/components/folder-selector-input.tsx
index fa9a48bb4b..4be4a8da3f 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/folder-selector/components/folder-selector-input.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/folder-selector/components/folder-selector-input.tsx
@@ -6,6 +6,7 @@ import { SelectorCombobox } from '@/app/workspace/[workspaceId]/w/[workflowId]/c
 import { useDependsOnGate } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-depends-on-gate'
 import { useForeignCredential } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-foreign-credential'
 import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-value'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import type { SubBlockConfig } from '@/blocks/types'
 import { resolveSelectorForSubBlock } from '@/hooks/selectors/resolution'
 import { useCollaborativeWorkflow } from '@/hooks/use-collaborative-workflow'
@@ -17,6 +18,7 @@ interface FolderSelectorInputProps {
   disabled?: boolean
   isPreview?: boolean
   previewValue?: any | null
+  previewContextValues?: Record<string, unknown>
 }
 
 export function FolderSelectorInput({
@@ -25,9 +27,13 @@ export function FolderSelectorInput({
   disabled = false,
   isPreview = false,
   previewValue,
+  previewContextValues,
 }: FolderSelectorInputProps) {
   const [storeValue] = useSubBlockValue(blockId, subBlock.id)
-  const [connectedCredential] = useSubBlockValue(blockId, 'credential')
+  const [credentialFromStore] = useSubBlockValue(blockId, 'credential')
+  const connectedCredential = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.credential)
+    : credentialFromStore
   const { collaborativeSetSubblockValue } = useCollaborativeWorkflow()
   const { activeWorkflowId } = useWorkflowRegistry()
   const [selectedFolderId, setSelectedFolderId] = useState<string>('')
@@ -47,7 +53,11 @@ export function FolderSelectorInput({
   )
 
   // Central dependsOn gating
-  const { finalDisabled } = useDependsOnGate(blockId, subBlock, { disabled, isPreview })
+  const { finalDisabled } = useDependsOnGate(blockId, subBlock, {
+    disabled,
+    isPreview,
+    previewContextValues,
+  })
 
   // Get the current value from the store or prop value if in preview mode
   useEffect(() => {
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/input-mapping/input-mapping.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/input-mapping/input-mapping.tsx
index 55c37277bd..69189c7629 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/input-mapping/input-mapping.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/input-mapping/input-mapping.tsx
@@ -7,6 +7,7 @@ import { formatDisplayText } from '@/app/workspace/[workspaceId]/w/[workflowId]/
 import { TagDropdown } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tag-dropdown/tag-dropdown'
 import { useSubBlockInput } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-input'
 import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-value'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import { useAccessibleReferencePrefixes } from '@/app/workspace/[workspaceId]/w/[workflowId]/hooks/use-accessible-reference-prefixes'
 import { useWorkflowState } from '@/hooks/queries/workflows'
 
@@ -37,6 +38,8 @@ interface InputMappingProps {
   isPreview?: boolean
   previewValue?: Record<string, unknown>
   disabled?: boolean
+  /** Sub-block values from the preview context for resolving sibling sub-block values */
+  previewContextValues?: Record<string, unknown>
 }
 
 /**
@@ -50,9 +53,13 @@ export function InputMapping({
   isPreview = false,
   previewValue,
   disabled = false,
+  previewContextValues,
 }: InputMappingProps) {
   const [mapping, setMapping] = useSubBlockValue(blockId, subBlockId)
-  const [selectedWorkflowId] = useSubBlockValue(blockId, 'workflowId')
+  const [storeWorkflowId] = useSubBlockValue(blockId, 'workflowId')
+  const selectedWorkflowId = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.workflowId)
+    : storeWorkflowId
 
   const inputController = useSubBlockInput({
     blockId,
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/knowledge-tag-filters/knowledge-tag-filters.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/knowledge-tag-filters/knowledge-tag-filters.tsx
index 2198555fc9..d297252abc 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/knowledge-tag-filters/knowledge-tag-filters.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/knowledge-tag-filters/knowledge-tag-filters.tsx
@@ -17,6 +17,7 @@ import { type FilterFieldType, getOperatorsForFieldType } from '@/lib/knowledge/
 import { formatDisplayText } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/formatted-text'
 import { TagDropdown } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tag-dropdown/tag-dropdown'
 import { useSubBlockInput } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-input'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import { useAccessibleReferencePrefixes } from '@/app/workspace/[workspaceId]/w/[workflowId]/hooks/use-accessible-reference-prefixes'
 import type { SubBlockConfig } from '@/blocks/types'
 import { useKnowledgeBaseTagDefinitions } from '@/hooks/kb/use-knowledge-base-tag-definitions'
@@ -69,7 +70,9 @@ export function KnowledgeTagFilters({
   const overlayRefs = useRef<Record<string, HTMLDivElement>>({})
 
   const [knowledgeBaseIdFromStore] = useSubBlockValue(blockId, 'knowledgeBaseId')
-  const knowledgeBaseIdValue = previewContextValues?.knowledgeBaseId ?? knowledgeBaseIdFromStore
+  const knowledgeBaseIdValue = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.knowledgeBaseId)
+    : knowledgeBaseIdFromStore
   const knowledgeBaseId =
     typeof knowledgeBaseIdValue === 'string' && knowledgeBaseIdValue.trim().length > 0
       ? knowledgeBaseIdValue
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/mcp-dynamic-args/mcp-dynamic-args.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/mcp-dynamic-args/mcp-dynamic-args.tsx
index 41527a5165..5271ecb33f 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/mcp-dynamic-args/mcp-dynamic-args.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/mcp-dynamic-args/mcp-dynamic-args.tsx
@@ -6,6 +6,7 @@ import { cn } from '@/lib/core/utils/cn'
 import { LongInput } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/long-input/long-input'
 import { ShortInput } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/short-input/short-input'
 import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-value'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import type { SubBlockConfig } from '@/blocks/types'
 import { useMcpTools } from '@/hooks/mcp/use-mcp-tools'
 import { formatParameterLabel } from '@/tools/params'
@@ -18,6 +19,7 @@ interface McpDynamicArgsProps {
   disabled?: boolean
   isPreview?: boolean
   previewValue?: any
+  previewContextValues?: Record<string, unknown>
 }
 
 /**
@@ -47,12 +49,19 @@ export function McpDynamicArgs({
   disabled = false,
   isPreview = false,
   previewValue,
+  previewContextValues,
 }: McpDynamicArgsProps) {
   const params = useParams()
   const workspaceId = params.workspaceId as string
   const { mcpTools, isLoading } = useMcpTools(workspaceId)
-  const [selectedTool] = useSubBlockValue(blockId, 'tool')
-  const [cachedSchema] = useSubBlockValue(blockId, '_toolSchema')
+  const [toolFromStore] = useSubBlockValue(blockId, 'tool')
+  const selectedTool = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.tool)
+    : toolFromStore
+  const [schemaFromStore] = useSubBlockValue(blockId, '_toolSchema')
+  const cachedSchema = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues._toolSchema)
+    : schemaFromStore
   const [toolArgs, setToolArgs] = useSubBlockValue(blockId, subBlockId)
 
   const selectedToolConfig = mcpTools.find((tool) => tool.id === selectedTool)
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/mcp-server-modal/mcp-tool-selector.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/mcp-server-modal/mcp-tool-selector.tsx
index fa5fcd496c..ca4ff45b18 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/mcp-server-modal/mcp-tool-selector.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/mcp-server-modal/mcp-tool-selector.tsx
@@ -4,6 +4,7 @@ import { useEffect, useMemo, useState } from 'react'
 import { useParams } from 'next/navigation'
 import { Combobox } from '@/components/emcn/components'
 import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-value'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import type { SubBlockConfig } from '@/blocks/types'
 import { useMcpTools } from '@/hooks/mcp/use-mcp-tools'
 
@@ -13,6 +14,7 @@ interface McpToolSelectorProps {
   disabled?: boolean
   isPreview?: boolean
   previewValue?: string | null
+  previewContextValues?: Record<string, unknown>
 }
 
 export function McpToolSelector({
@@ -21,6 +23,7 @@ export function McpToolSelector({
   disabled = false,
   isPreview = false,
   previewValue,
+  previewContextValues,
 }: McpToolSelectorProps) {
   const params = useParams()
   const workspaceId = params.workspaceId as string
@@ -31,7 +34,10 @@ export function McpToolSelector({
   const [storeValue, setStoreValue] = useSubBlockValue(blockId, subBlock.id)
   const [, setSchemaCache] = useSubBlockValue(blockId, '_toolSchema')
 
-  const [serverValue] = useSubBlockValue(blockId, 'server')
+  const [serverFromStore] = useSubBlockValue(blockId, 'server')
+  const serverValue = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.server)
+    : serverFromStore
 
   const label = subBlock.placeholder || 'Select tool'
 
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/project-selector/project-selector-input.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/project-selector/project-selector-input.tsx
index 9d5e353202..e5b7c5d930 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/project-selector/project-selector-input.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/project-selector/project-selector-input.tsx
@@ -9,6 +9,7 @@ import { SelectorCombobox } from '@/app/workspace/[workspaceId]/w/[workflowId]/c
 import { useDependsOnGate } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-depends-on-gate'
 import { useForeignCredential } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-foreign-credential'
 import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-value'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import { getBlock } from '@/blocks/registry'
 import type { SubBlockConfig } from '@/blocks/types'
 import { resolveSelectorForSubBlock } from '@/hooks/selectors/resolution'
@@ -55,14 +56,19 @@ export function ProjectSelectorInput({
     return (workflowValues as Record<string, Record<string, unknown>>)[blockId] || {}
   })
 
-  const connectedCredential = previewContextValues?.credential ?? blockValues.credential
-  const jiraDomain = previewContextValues?.domain ?? jiraDomainFromStore
+  const connectedCredential = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.credential)
+    : blockValues.credential
+  const jiraDomain = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.domain)
+    : jiraDomainFromStore
 
   const linearTeamId = useMemo(
     () =>
-      previewContextValues?.teamId ??
-      resolveDependencyValue('teamId', blockValues, canonicalIndex, canonicalModeOverrides),
-    [previewContextValues?.teamId, blockValues, canonicalIndex, canonicalModeOverrides]
+      previewContextValues
+        ? resolvePreviewContextValue(previewContextValues.teamId)
+        : resolveDependencyValue('teamId', blockValues, canonicalIndex, canonicalModeOverrides),
+    [previewContextValues, blockValues, canonicalIndex, canonicalModeOverrides]
   )
 
   const serviceId = subBlock.serviceId || ''
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/sheet-selector/sheet-selector-input.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/sheet-selector/sheet-selector-input.tsx
index cd2a5adf5b..bfb9dbe4f6 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/sheet-selector/sheet-selector-input.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/sheet-selector/sheet-selector-input.tsx
@@ -8,6 +8,7 @@ import { buildCanonicalIndex, resolveDependencyValue } from '@/lib/workflows/sub
 import { SelectorCombobox } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/selector-combobox/selector-combobox'
 import { useDependsOnGate } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-depends-on-gate'
 import { useForeignCredential } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-foreign-credential'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import { getBlock } from '@/blocks/registry'
 import type { SubBlockConfig } from '@/blocks/types'
 import { resolveSelectorForSubBlock, type SelectorResolution } from '@/hooks/selectors/resolution'
@@ -66,9 +67,12 @@ export function SheetSelectorInput({
     [blockValues, canonicalIndex, canonicalModeOverrides]
   )
 
-  const connectedCredential = previewContextValues?.credential ?? connectedCredentialFromStore
+  const connectedCredential = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.credential)
+    : connectedCredentialFromStore
   const spreadsheetId = previewContextValues
-    ? (previewContextValues.spreadsheetId ?? previewContextValues.manualSpreadsheetId)
+    ? (resolvePreviewContextValue(previewContextValues.spreadsheetId) ??
+      resolvePreviewContextValue(previewContextValues.manualSpreadsheetId))
     : spreadsheetIdFromStore
 
   const normalizedCredentialId =
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/slack-selector/slack-selector-input.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/slack-selector/slack-selector-input.tsx
index 9a7e4ebfa2..b99c26bff2 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/slack-selector/slack-selector-input.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/slack-selector/slack-selector-input.tsx
@@ -8,6 +8,7 @@ import { SelectorCombobox } from '@/app/workspace/[workspaceId]/w/[workflowId]/c
 import { useDependsOnGate } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-depends-on-gate'
 import { useForeignCredential } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-foreign-credential'
 import { useSubBlockValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/hooks/use-sub-block-value'
+import { resolvePreviewContextValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils'
 import type { SubBlockConfig } from '@/blocks/types'
 import type { SelectorContext, SelectorKey } from '@/hooks/selectors/types'
 
@@ -58,9 +59,15 @@ export function SlackSelectorInput({
   const [botToken] = useSubBlockValue(blockId, 'botToken')
   const [connectedCredential] = useSubBlockValue(blockId, 'credential')
 
-  const effectiveAuthMethod = previewContextValues?.authMethod ?? authMethod
-  const effectiveBotToken = previewContextValues?.botToken ?? botToken
-  const effectiveCredential = previewContextValues?.credential ?? connectedCredential
+  const effectiveAuthMethod = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.authMethod)
+    : authMethod
+  const effectiveBotToken = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.botToken)
+    : botToken
+  const effectiveCredential = previewContextValues
+    ? resolvePreviewContextValue(previewContextValues.credential)
+    : connectedCredential
   const [_selectedValue, setSelectedValue] = useState<string | null>(null)
 
   const serviceId = subBlock.serviceId || ''
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tool-input/tool-input.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tool-input/tool-input.tsx
index cd2f342a33..8f03f4b2e5 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tool-input/tool-input.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tool-input/tool-input.tsx
@@ -332,6 +332,7 @@ function FolderSelectorSyncWrapper({
           dependsOn: uiComponent.dependsOn,
         }}
         disabled={disabled}
+        previewContextValues={previewContextValues}
       />
     </GenericSyncWrapper>
   )
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/sub-block.tsx b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/sub-block.tsx
index cd1e9168e8..308408c063 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/sub-block.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/sub-block.tsx
@@ -785,6 +785,7 @@ function SubBlockComponent({
             disabled={isDisabled}
             isPreview={isPreview}
             previewValue={previewValue}
+            previewContextValues={isPreview ? subBlockValues : undefined}
           />
         )
 
@@ -820,6 +821,7 @@ function SubBlockComponent({
             disabled={isDisabled}
             isPreview={isPreview}
             previewValue={previewValue}
+            previewContextValues={isPreview ? subBlockValues : undefined}
           />
         )
 
@@ -831,6 +833,7 @@ function SubBlockComponent({
             disabled={isDisabled}
             isPreview={isPreview}
             previewValue={previewValue}
+            previewContextValues={isPreview ? subBlockValues : undefined}
           />
         )
 
@@ -853,6 +856,7 @@ function SubBlockComponent({
             disabled={isDisabled}
             isPreview={isPreview}
             previewValue={previewValue as any}
+            previewContextValues={isPreview ? subBlockValues : undefined}
           />
         )
 
@@ -864,6 +868,7 @@ function SubBlockComponent({
             disabled={isDisabled}
             isPreview={isPreview}
             previewValue={previewValue as any}
+            previewContextValues={isPreview ? subBlockValues : undefined}
           />
         )
 
@@ -875,6 +880,7 @@ function SubBlockComponent({
             disabled={isDisabled}
             isPreview={isPreview}
             previewValue={previewValue as any}
+            previewContextValues={isPreview ? subBlockValues : undefined}
           />
         )
 
@@ -899,6 +905,7 @@ function SubBlockComponent({
             isPreview={isPreview}
             previewValue={previewValue as any}
             disabled={isDisabled}
+            previewContextValues={isPreview ? subBlockValues : undefined}
           />
         )
 
@@ -934,6 +941,7 @@ function SubBlockComponent({
             disabled={isDisabled}
             isPreview={isPreview}
             previewValue={previewValue}
+            previewContextValues={isPreview ? subBlockValues : undefined}
           />
         )
 
@@ -967,6 +975,7 @@ function SubBlockComponent({
             disabled={isDisabled}
             isPreview={isPreview}
             previewValue={previewValue as any}
+            previewContextValues={isPreview ? subBlockValues : undefined}
           />
         )
 
@@ -978,6 +987,7 @@ function SubBlockComponent({
             disabled={isDisabled}
             isPreview={isPreview}
             previewValue={previewValue}
+            previewContextValues={isPreview ? subBlockValues : undefined}
           />
         )
 
diff --git a/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils.ts b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils.ts
new file mode 100644
index 0000000000..1812992214
--- /dev/null
+++ b/apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/utils.ts
@@ -0,0 +1,18 @@
+/**
+ * Extracts the raw value from a preview context entry.
+ *
+ * @remarks
+ * In the sub-block preview context, values are wrapped as `{ value: T }` objects
+ * (the full sub-block state). In the tool-input preview context, values are already
+ * raw. This function normalizes both cases to return the underlying value.
+ *
+ * @param raw - The preview context entry, which may be a raw value or a `{ value: T }` wrapper
+ * @returns The unwrapped value, or `null` if the input is nullish
+ */
+export function resolvePreviewContextValue(raw: unknown): unknown {
+  if (raw === null || raw === undefined) return null
+  if (typeof raw === 'object' && !Array.isArray(raw) && 'value' in raw) {
+    return (raw as Record<string, unknown>).value ?? null
+  }
+  return raw
+}
diff --git a/apps/sim/app/workspace/[workspaceId]/w/components/preview/components/preview-editor/preview-editor.tsx b/apps/sim/app/workspace/[workspaceId]/w/components/preview/components/preview-editor/preview-editor.tsx
index 90831de455..bfc86ec20d 100644
--- a/apps/sim/app/workspace/[workspaceId]/w/components/preview/components/preview-editor/preview-editor.tsx
+++ b/apps/sim/app/workspace/[workspaceId]/w/components/preview/components/preview-editor/preview-editor.tsx
@@ -784,8 +784,12 @@ function PreviewEditorContent({
     ? childWorkflowSnapshotState
     : childWorkflowState
   const resolvedIsLoadingChildWorkflow = isExecutionMode ? false : isLoadingChildWorkflow
+  const isBlockNotExecuted = isExecutionMode && !executionData
   const isMissingChildWorkflow =
-    Boolean(childWorkflowId) && !resolvedIsLoadingChildWorkflow && !resolvedChildWorkflowState
+    Boolean(childWorkflowId) &&
+    !isBlockNotExecuted &&
+    !resolvedIsLoadingChildWorkflow &&
+    !resolvedChildWorkflowState
 
   /** Drills down into the child workflow or opens it in a new tab */
   const handleExpandChildWorkflow = useCallback(() => {
@@ -1192,7 +1196,7 @@ function PreviewEditorContent({
         <div ref={subBlocksRef} className='subblocks-section flex flex-1 flex-col overflow-hidden'>
           <div className='flex-1 overflow-y-auto overflow-x-hidden'>
             {/* Not Executed Banner - shown when in execution mode but block wasn't executed */}
-            {isExecutionMode && !executionData && (
+            {isBlockNotExecuted && (
               <div className='flex min-w-0 flex-col gap-[8px] overflow-hidden border-[var(--border)] border-b px-[12px] py-[10px]'>
                 <div className='flex items-center justify-between'>
                   <Badge variant='gray-secondary' size='sm' dot>
@@ -1419,9 +1423,11 @@ function PreviewEditorContent({
                     ) : (
                       <div className='flex h-full items-center justify-center bg-[var(--surface-3)]'>
                         <span className='text-[13px] text-[var(--text-tertiary)]'>
-                          {isMissingChildWorkflow
-                            ? DELETED_WORKFLOW_LABEL
-                            : 'Unable to load preview'}
+                          {isBlockNotExecuted
+                            ? 'Not Executed'
+                            : isMissingChildWorkflow
+                              ? DELETED_WORKFLOW_LABEL
+                              : 'Unable to load preview'}
                         </span>
                       </div>
                     )}
diff --git a/apps/sim/lib/logs/execution/snapshot/service.ts b/apps/sim/lib/logs/execution/snapshot/service.ts
index cad4c259c6..856c3a1851 100644
--- a/apps/sim/lib/logs/execution/snapshot/service.ts
+++ b/apps/sim/lib/logs/execution/snapshot/service.ts
@@ -33,11 +33,25 @@ export class SnapshotService implements ISnapshotService {
 
     const existingSnapshot = await this.getSnapshotByHash(workflowId, stateHash)
     if (existingSnapshot) {
+      let refreshedState: WorkflowState = existingSnapshot.stateData
+      try {
+        await db
+          .update(workflowExecutionSnapshots)
+          .set({ stateData: state })
+          .where(eq(workflowExecutionSnapshots.id, existingSnapshot.id))
+        refreshedState = state
+      } catch (error) {
+        logger.warn(
+          `Failed to refresh snapshot stateData for ${existingSnapshot.id}, continuing with existing data`,
+          error
+        )
+      }
+
       logger.info(
         `Reusing existing snapshot for workflow ${workflowId} (hash: ${stateHash.slice(0, 12)}...)`
       )
       return {
-        snapshot: existingSnapshot,
+        snapshot: { ...existingSnapshot, stateData: refreshedState },
         isNew: false,
       }
     }