About saving. It seems my game wasn't saved for some game days (like 5 to 10 days) .
Also I notice that maps and things I hang on the walls disappear. (The history and Math stuff)
I will come back if the problem persists. It might have been just my impression.
Edit: Also, PLEASE solve the thing where you can place random rectangles full of fresh rebar foundation if you right click in a certain way (hard to explain, only happens accidentaly)
Rectangles of rebar foundation just appear randomly, I just remember that I right click and fwap, a new random layer of foundation appears, and it overlaps with what I already had going and now I have to demolish and make the whole thing again (the double foundation overlapped inside each other make designated rooms (classrooms, lounges etc.) buggy.
EDIT2: AGAIN. GAAAH, PLEASE, FOR GOD'S LOVE, AN UNDO BUTTON. :(
Bug with saving has been found and will be fixed in the next update.
Thanks for describing that floor bug. If everything goes well, it also will be fixed in the next update.
For now you can only destroy objects, but we want to add undo in the future. Sorry :/