[Bug] S3 uploads fail with 500 error despite healthy S3 connection

[VarunAtZethic]

Is there an existing issue for this?

• Yes, I have searched the existing issues and none of them match my problem.

Product Variant

Self-Hosted

Describe the bug you're experiencing

Environment:

• Deployment: Docker via Coolify
• Storage: AWS S3

Configuration:

  S3_ACCESS_KEY_ID=<your-access-key>
  S3_SECRET_ACCESS_KEY=<your-secret-key>
  S3_BUCKET=<your-bucket-name>
  S3_REGION=us-east-1
  S3_FORCE_PATH_STYLE=false
  S3_ENDPOINT=

Problem:
Image uploads fail with generic 500 error:
{"json":{"defined":false,"code":"INTERNAL_SERVER_ERROR","status":500,"message":"Internal server error"}}

What works:

• Health check reports S3 as healthy: "storage":{"type":"s3","status":"healthy","message":"S3 storage is accessible and credentials are valid."}
• AWS CLI upload from inside container works: aws s3 cp test.txt s3://<bucket>/ succeeds
• Node.js HTTPS connectivity works
• S3 bucket has existing files (visible via aws s3 ls)

What doesn't work:

• Uploading images through the UI fails with 500
• No error details logged to stdout

What template are you using?

None

Anything else?

No response