I’ve noticed this a few times now, I’m playing an album and all is well - it plays the next track all the way through no problem.
If I play a single song or two, and then go back to the music home screen and pick another on album it opens it and then freezes.
If I hit the Xbox button on the controller to drop me back to the main menu and try to go back to Plex it closes and then launches from cold (Plex splash screen)
Movies / TV work fine, its just music.
Latest build, stock non-preview dashboard, and latest PlexPass version (24/09/15) of the server on an HP Microserver G8 running Windows 2012R2 Standard.
Music works fine from my other devices (Win10 PCs/Tablets and Android/Win8.1 Phones)
This issue has been fixed internally and will be available in the next update!
Nice 
I look forward to it
