Has anyone ran into the issue at startup that says camera failed to initialize but still comes on, takes photos and video fine? Happened to me today and in mid flight my image froze. Bought her down restarted everything got a black screen on the ST-16. Turned everything off waited a bit restarted and everything worked fine. It's not the first time I see the camera failed to initialize.
Try re-seating your camera. Mine acted the same, I'm thinking might have to make sure those contacts stay clean down the road..?