I would really like to have the feature that sync updates the already synced files if needed.
For example: When a new episode is available, PLEX on my iPad automatically syncs this. At that moment there are no Dutch subtitles available. When 2 days later there are subtitles available and in my library, sync does not add this to the episode on my iPad and I have to delete and manually sync that episode to get the subtitles on my iPad.
Agree. I’ve just deleted and re-synced episode to get newly added russian audio track on my iPhone