Playback error: h264 file with AC3 audio will not playback on swiftfin

[TheDreadPirate]

I have a similar problem, tvOS swiftfin won't play HEVC files at all, won't play anything with AC3 (Not sure if just 5.1 or stereo also). Transcoding works on other clients, but doesn't seem like it works in Swiftfin. Unfortunately the AppleTV in the mix isn't mine but one of my users', so my ability to troubleshoot is limited.

I'd need your jellyfin server log and an example movie/show name from the log so I can see what the client/server is trying to do.