SOLVED: Onn 4k can't play DV files

[sisu]

I have an Onn 4k that is hooked up to a 1080p Projector. I'm playing a 4k DV file and it only shows a blank screen while the sound is playing fine.

This device can play HDR/DV file, but if it's just DV file it's just a blank screen.

Things I noticed:
- The project is 1080p, onn 4k is a 4k and HDR (no DV). When I stream, it's Direct Play.

I tried:
- Turn on Jellyfin Server's tone mapping
- Disable Onn's device HDR capability to force Jellyfin transcode, but still direct play.

Is there anything else I missed?