While watching a movie with subtitles, the playback stops unexpectedly (usually at the end of content according to many similar reports). The following error is displayed: Playback error Conversion failed. The transcoder exited due to an error. After resuming the playback, the movie stops again…

It looks like a new Beta fixing this issue is released: (Transcoder) Unexpected behavior when subtitles ended before the end of video (#14426) Plex Media Server - #596 by drzoidberg33

Conversion failed playback error when subtitles are over (usually at the end)

Conversion failed playback error when subtitles are over (usually at the end)