SOLVED: Playback wont start suddenly

[weddingcrasher]

Hi,

after 1year+ of using jellyfin with no problems, i am suddenly running into playback issues. The streams just wont start, infinite loading symbol.

• I dont think transcoding is involved, as the issue persists when i disable transcoding for my user
  
• I think it only happens for mp4 files, but unsure about that.
  
• I am using 10.10.1 in a Docker container
  

What i tried so far:

• Downgrading to a bunch of older versions
  
• Disabling Intel Quicksync Hardware acceleration
  
• Disabling transcoding playback for my user
  
• Downloading the media (works)
  

These are my logs: https://pastebin.com/Pa3Q8LnT

Thanks for any advice.