Release 1.8.0 of Plex Media Server has just been released for Plex Pass. It has the DASH transcoder deadlock fix
If you are a Plex Pass user, please upgrade and report back if this fixed your deadlocks and error 503. If not then we will need a new investigation with new set of diagnostics to investigate
See Release Notice http://forums.plex.tv/discussion/comment/1488006#Comment_1488006
