Definitely having bugs here on my 622 with L612. When tuning to OTA locals, I'm getting black screen and meter shows 0 signal strength (although signal is really at 95%), and I dont get the yellow error message, and swapping (PIP) to the other tuner does not swap.
If I then go to a sat channel from an OTA channel it doesnt always tune to the channel I type.
Also when I go to play A DVR'd event, it does not always play, and I have at least five times been able to duplicate a situation where attempting to play a DVR'd event by selecting the Play button (on screen) results in my 622 tuning to a channel, rather than playing the DVR event.
The screen is also flashing to black for one second when I push Cancel.
Just realized that PIP Swap (in single mode) isnt working at all. I'm tuned to HBO now, and correct movie is on. I swap, and picture is blank, but HBO audio is still playing. I hit cancel or info and HBO movie appears, and banner says History channel/program, not HBO. So, I'm unable to successfully Swap tuners... Turning receiver 'off' seems to make issue go away until the next time it starts happening...
None of the above happens 100% of the time, and apparently is exacerbated by moving between different activities (going from sat channels to OTA channels to DVR'd events, back to Sat or OTA channels).
I have unplugged/rebooted/checked switch/downloaded guide/run System Info LNBF check.
I'm not having any of these problems on my 622 that is still on L512.
My 622 under L612 seems very flaky compared to how relatively rock solid my 622 has always been.