I will add an video with issue. Phones have plex 9.23.0 app and the tablet have 9.21.3. Strange is not all the live tv channels fails. For example in the video can be seen that Discovery works on the phone without problems, but when I try to play Viasat, the app it goes crazy.
And yes I can confirm that the problem is from plex client 9.23.0. I’ve downgraded to 9.21.3(I hope is an safe source from where I grab the apk file) on all my devices and everything works again.