Scheinbar gibt es einen Bug und man sollte vor dem Upgrade auf 1.16.1+ erst den Tuner löschen, dann aktualisieren und daraufhin den Tuner neu hinzufügen:
Plex is updating their Guide data source. It appears that 1.16.0.1226 only handles the old Guide and 1.16.1.1291 only works with a newly created instance of the tuner with the new guide. Ideally you would know this and delete the tuner from the Server Setting Live TV +_ DVR, then upgrade to 1291, and then redefine your tuner on 1291. There appears to be a short window after reboot when 1291 shows the old tuner in Settings and you can delete it, then recreate it. If you wait a few minutes, then 1…
