Do you have usb debugging checked? If not - in Settings > USB Settings is it set to Mass Storage?
I need some more info here - are you guys plugged in for this? FP1 stock kernel? Do you have music controls showing? piizzadude - How long did it take from the point of selecting that lockscreen to the first hotboot? It looks like I'm going to need to recreate this on my phone so I can see what's going on, but I've had no luck so far.
Music controls on but not always on... it happens to me on AOSP and rotary lockscreens... haven't tried any other yet just sticking with circle now. This happens when on battery only in my experience.