[BUG] Unable to upload videos to journey

Pre-flight checklist

• I have searched existing issues and this bug has not been reported yet
• I am running the latest available version of TREK
• I have read the Troubleshooting guide and my issue is not covered there

TREK version

4.2.1

Describe the bug

When trying to upload a video to an existing journey entry, I get an error saying it failed to upload. It also fails to show a preview thumbnail once selected.

Reviewing the logs I see this: [DEBUG] 2026-09-12T07:47:12 POST /api/journeys/entries/217/photos 400 23ms ip=XXX.XXX.XXX.XXX

Steps to reproduce

1. Open an existing journey
2. Click an existing entry and click edit
3. select a video file to upload
4. notice the preview/thumbnail is not there
5. press save and see an error uploading it

Expected behavior

Video files will upload succesfully

Deployment method

Docker (standalone)

Host OS

No response

Accessing TREK from

Desktop browser

Browser (if applicable)

No response

Relevant logs or error output

[DEBUG] 2026-09-12T07:47:12 POST /api/journeys/entries/217/photos 400 23ms ip=XXX.XXX.XXX.XXX

Screenshots

No response

Additional context

No response