Okey here is another test with some sample files (provided here as links):
Plex App in Samsung TV: both files did work, they say “buffering” probably because the TV is connected to the WiFi and is not fast enough
Plex App in Apple TV: First video fails, second one play intermittently
Plex App in Roku Premiere+:
- 1st video fails: Conversion failed, the transcoder exited due to an error.
- 2nd video stop every second with a loading indicator