I noticed you are using Action Launcher, I haven't used it for a while cos when i did some apps kept crashing like the play store etc, i was using an early version though. I think it had something to do with the widgets\shutters\whatevertheyarecalled as when i used them, things would sometimes crash. Was just a bit of a guess as to whether that was related to your face unlock crashes though :)
Maybe send a system bug report (developer options > Enable USB debugging > Take bug report) to Chris Lacy as he might be able to fix it.
Also, maybe try remove the shutter (is that what its called?) from the Camera icon on your home screen. I wonder if that's causing your problem.