Re: [OPEN] Disappearing Ceiling (Glass Roof)
I've had this problem as well, I first noticed it after building a greenhouse as a separate building and installing a glass roof on the greenhouse. After doing so, I noticed in first person mode that the ceilings disappeared and I could see the upper floors.
After playing around a bit, I was able to resolve the issue entirely in my game by using the sledgehammer tool to delete the ceiling of my greenhouse before installing the roof. Installing the glass roof while the ceiling is in place automatically removes the ceiling (because otherwise what would be the point of the glass roof...), but getting rid of it before even putting on the roof resolved my issue with the missing ceilings in the rest of my house.
Not sure if this will help anyone else, but it does seem to have worked in my own game.