Arg...ceiling tiles. I have had the same problems countless times. With the black ceiling, do you have it set to the floor you are trying to view in cameraman mode? I noticed that if you have for example the second floor of a lot visible and go to the first floor in cameraman mode the ceiling is black, though it doesn't happen all the time. The game reduces the complexity of lighting on every floor except for the active one so the black ceilings are a result maybe.