Same issues here. Mine has nothing to do with the scene. If I don't click to focus before I take a picture it freezes up and I get nothing but a black picture. Eventually I get a message unable to connect to camera and I need to reboot. This happens on auto scene and the others. It's workable but if I do forget to focus I usually lose the shot.
Flash the 5/10 nightly and see if that fixes it for you.