Another update. Since it appeared really easy to remove updates and roll back to the older version of the Plex client, and also easy to enroll in beta testing, I went ahead and installed the latest beta 9.1.0.31834. From just a short test, the issue appears to be fixed with the latest beta.
For anyone that wants to try the beta here is the link to the releases. Release Announcements - Android TV beta - #515 by marekszulik
