My subtitles for movies works on any TV and any player but Plex. Encoding is wrong. You can see subtitles but you can't see special characters for Czech. So instead of seeing "Příliš žluťoučký kůň úpěl ďábelské ódy" you can see only "Pli luouk k pl belsk dy" and as you can see it's really useless for movie watching.
Fix this issue please. Thank you.