I've noticed this behavior for a while now, but it was VERY occasional for a while. Now I've had it happen twice in 24 hours. The behavior:
While playing normally, at some point the song information area in the top center, with song title, elapsed time, etc, stops updating. The spectrum analyzer freezes, the transport bar stops, counting stops, and the last song gets "stuck" in the display. MC will continue to play through Playing Now and the big display of album art updates too. In some cases the transport controls (next, previous, pause, etc) stop responding too. In other cases (like 5 minutes ago for me) the transport controls keep working.
Each time this has happened Media Center is able to be stopped and restarted and the problem goes away for a while.
Just reporting a minor issue.
Thanks,
Brian.