Live TV playback - switching from one show to another hangs Plex iOS

This is related to this issue I just reported forums.plex.tv/discussion/276995/pms-status-shows-live-session-now-playing-when-there-is-none#latest

When I start a live TV show everything is good. When I try to stop it and then switch to another show I get the following error on my iPhone.

Meanwhile PMS status show the live broadcast is still playing (it’s not).

The only way I can get round this is to:

  • Quit Plex
  • Select new live TV show
  • Repeat

Does this indicate my QNAP TVS473 just isn’t powerful enough to handle / terminate the transcode?

A bit more testing has revealed if I terminate the session from PMS and not from iOS it works.

When I stop the Live TV directly from iOS PMS shows it is still playing and I am unable to stop unless I restart Plex.