Other things not working for me on 4.2 were when I plugged in my USB Cable to PC, the connection manager screen (the one with Active Sync, Internet Sharing, and Disk Drive options) did not Initialize or pop up.

Internal storage was showing us as InternalStorage2 as well, so lots of problems with the camera tying to save to the default Internal Storage..

I flashed back to Mighty 4.1 and everything again works Flawlessly! In my tests, 4.1 is picture perfect.