MKV Flac embedded subs

[Efficient_Good_5784]

After reading Toby's comment about the subs, I re-encoded the video with no subs and still have the same results.  It will play in the Windows client, but not the Android or Android TV clients.

Sounds like a transcoding issue. You're using JMP which can direct play ASS subs which means no transcoding happens.

From your Jellyfin server, can you share:

1. What CPU
   
2. What GPU (if any)
   
3. Your server logs (both server and ffmpeg logs) after playing a video that fails.