Bigger issues right now with the forum software. I posted a general reply to the main post, it seemed to hang, I hit reply to the person above me, it changed my main reply to a reply to his post. Now getting errors when trying to fixit it all.
Suffice it to say the new beta broke hardware encoder on my Shield, the workaround is temporarily switching to software until they fixit.
That works! Thank you 
If you disable hardware or hybrid in your advanced playback settings, it will work. Found that on my nVidia Shield last night in a frenzy.. It's a workaround, not optimal. Hardware is always optimal.
Thanks, tmm1!
Confirmed having the same problem on my Nvidia Shield client (spinning wheel). Seems to be client based issue as I was on 2022.12.31.xxxx and having the problem, upgraded the server to latest and still had the problem. Submitted diagnostics about 5 minutes ago.
Temporarily fixed using software decoder.
We were able to track this down. A new build with fix is uploading.
New build fixes it here. Thanks devs!
This new build fixed on the Shield, but I still see an issue persisting on my Pixel 7 Pro. I get sound but no video unless I switch to software decoding.
1.5.2115 build
Android 13 T2B1.221118.006
With mpeg2 channel? I think that's expected. Can you try the non-beta to see if there's any difference?
Yes, mpeg2 channel. Plays fine with hardware encoding on stable 4.5.1.
Okay please play it on stable, submit diagnostics (Settings > Support > Submit > Video)
Then do the same on beta
Okay, just submitted both!
Thanks for the diagnostics. A new beta build is uploading now with a fix.
Been having all kinds of playback issues the last couple days on my onn 4k box and pixel 7 pro both remotely and on local LAN. i mostly watch ATSC3 channels from my HDHR. Takes a LONG time to tune the channel and when it finally does there is no sound?!?!
Just updated to 2023.01.06.0123 server.
Channels version on the Pixel 7 is 4.5.1.
Toggled between hardware and software decoding on the Pixel 7. Still doesn't work.
v4.5.1 was released a while ago and has not changed. It sounds like something changed with your ATSC3 towers or signal. Is your HDHR firmware up to date? Can you watch on the official HDHR app
The latest HDHR firmware is dated Dec5 which was pushed out to my 2 tuners on the 6th or 7th of Dec. Worked fine before it and after it up until yesterday or possibly the day before. I just got home and tried the HDHR app on Windows. The stations seem to play back fine with it. On the Pixel 7 Pro they seem to now tune/play fine when on the LAN however when I switch to LTE (T-Mobile) all the ATSC3 stations do not play. After about 30 seconds the image (frozen) appears, there's no sound and there's a spinning circle. If I tune any of the ATSC1 stations, they all play back with sound but there's a buffering issue. Only plays about 3 seconds at a time.
It's almost as if T-Mobile all of a sudden is throttling the Channels DVR content -or- my IP which Channels DVR is located?????
Submit diagnostics after the issue happens
We've released a new pre-release update that may solve your problem. Please let us know.
This fixed my issue. Thanks!