Plex can't play Clone Wars any more

I don’t have an option to toggle directplay on / off neither in the media server settings nor in the Android TV Plex App.

Weird thing is: if I re-encode the files again (for instance from it’s original VC-1 to H265) the new file plays just fine. But what happened that makes Plex refuse to play the files? If I stream from phone to TV, the files play just fine. It’s deffinetly TV related. The TV Android Plex App has been updated several times since the problem started months ago butr no change…

I found this thread: