I'm experiencing the same thing. I've wiped the camera app cache, which didn't fix it. I then factory reset, which also didn't fix it. Next step will be to contact support for a replacement.
A replacement wont help. You're better of waiting for samsung to patch it, which I can only hope they will. I have troubled shoot it to absolutely no end. The last update to the camera completely unstabilized the phone. No one was complaining, so why mess with it? What was the point?