Same issue after the upgrade
i also had the same issue with the camera after installing the update.
up to that moment, all was working fine.
in an attempt to fix this, i performed a few rests through the Settings->About->Phone reset. after each reset, it seemed to be working for a few moments, but then, after a while, it stopped again.
called HTC and they could not help me other than saying to reset the phone.
i did find that a hardware reset using the buttons is performing a different level of a rest and for now, it seems to solve the problem. (power off, Power on with vol up and down pressed).
as others on the thread experienced, i do blame the software update.
