I'm having an issue since applying the fall update. When waking up from sleep, my SP3 is occasionally not bringing up the login screen. The screen is black and the backlight comes on. I can move the mouse around with the touchpad. The only way to get out of this scenario is to hold down the power and volume up buttons. It seems to only happen after the SP3 has been sleeping for a while. If I just lock it and come back 10 minutes later, this doesn't happen. Anyone else experience this issue?