What was the previous version that you upgraded from? When I upgraded from 1.23.4.4805 to 1.23.6.4863 I had issues with not being able to record or watch Live TV & DVR. I was able to resolve it by manually initiating an EPG refresh, and I didn’t have any issues subsequently with upgrading to 1.23.6.4881.
The upgrade notes indicate that they changed how Plex internally identifies channels. You aren’t supposed to have to do an EPG refresh with an upgrade (only downgrade), but others have had an EPG refresh fix this for them as well.
