After installing v225, I had 2 solid locks, nothing worked. This is with beta 11 on a MK2a, and the first time I have seen a hard lock with this version.

Serial was connected both times, and the last lines were simply the serial notify I have enabled. The web server was unresponsive, as was the buttons on the unit. The display was frozen, and audio stopped. I dodn't try to ping the unit though. The first lock happened when I pressed play to resume the playlist, the second lock occured when it was playing after the reboot.

I;ve since rebooted it and it seems fine for now, playing longer then before. v225 has been flawless on my MK2a at home.

And a suggestion, have the serial debug code enabled at all times, not just when in the Vitals beta 11 screen.