This is an issue with the plex app for all android devices.
Any work arounds suggested, are just work arounds that don’t solve the actual issue.
I have also been encountering issues with Live TV & DVR for android for 6+ months.
Heres the thread that these changes are actively being worked on:
Mods should close this thread and a few others like this and have all reports in the above thread as that’s the only one actively getting investigated by a Plex employee
