I agree. There seems to be some pretty big issues across the board with this update. Even if most of them seem to, eventually, work themselves out, it's pretty bad for their reputation.
Have you tried uninstalling 1 channel like I did? How about forcing the update again? If you try the forget, let it go for like 10 minutes or more if it just keeps thinking, then restart and check. If you try the latter, just let the update sit until it stops.
A few of us have found that cleared the issue, even if it is a ridiculous solution.