I have some multiple issues with my Note 3after the update to 4.2.2. I`ve noticed that the screen rotation doesn`t work and the step counter doesn`t function. Oh, and if I want the sleep tracker to work, I have to restart the phone before I go to sleep...That`s not very nice
As other have previously said, most errors that occur after a android update are fixed after a soft reset. Usually the phone will reboot after the install as taken place but this is a android reset.
Most devices need a manual reboot before you'll get all your functions back. It's safe to do and no data or anything will be lost, make sure your backed up anyway just in case but that should be a standard procedure anyway before any reset.