I use the native camera app and many of my recent pictures either have a large grey area with no information:
or noise in the picture made of bits of another picture:
Is this a known problem? It was happening again last night with great frequency, so I restarted the phone and the next picture was fine.
Edit: I have since removed all 752 pictures. I shot a few more, and still had at least one shot with each of the problems presented here. I believe I will try a 3rd-party camera.