Unable to play HDR content on HDR capable TV

[GoroMajima]

Your iGPU cannot decode AV1.  Uncheck that box.  Nor can you encode to AV1, uncheck "Allow encoding in AV1 format".

And the log you share is the main jellyfin log.  However, since it is direct playing there wouldn't be a ffmpeg log anyway.

Soooo, the file that is direct playing.  Is it the same Dolby Vision video you were having issues with earlier?

Gotcha I unchecked for AV1, and yes it is the same video from the post.