I just tested here and it is working in the Guide on both NextPVR and in UI Client. Are you hitting enter? I thought there was a way to configure the time to avoid the enter but I can't find it for v4 or v5, the PCH and MVP used to require a longer wait.
Hmm, yeah tried with and without enter. Neither worked. I'm talking the desktop client on Windows. So, I just tried it again and it DID work. Not sure what I did to keep it from working, but it worked this time. The old "can't reproduce" problem...
Sorry for the false alarm.
I tried with V4 and I don't see the timeout without enter on the tv guide either, it may never have been there. While live tv is playing it works without enter in v5 as expected but it is probably still faster just to hit enter.
2019-10-18 18:15:33.988 [DEBUG][123] auto changing channels after 2243.6181ms