Observed behaviour
Trying to create post with an attachment in a forum / media channel should work, but doesn't post with the attachment / returns an error that no media is attached
Reproduction steps
- Create a forum / media channel
- Attach any media
- Try to create the post
- See that no media was attached / get the error that no media is attached
Build information
Stable Web 2026.1007.140812, Linux (x64), Firefox 157.0, Locale en-GB
Platform
Web