I was building an additional bathroom and bedroom for my restaurant owner main family to use if they need to remain overnight at one of their restaurants.
However, when I used the wall tool and tried to press escape when I was done, it would not disappear and began to draw more walls where they didn't belong. I used the undo button. Then, the same thing happened with doors, paint, among other build mode issues. This problem began tonight. I do not have a dance floor.
I did check to ensure that I hadn't forgotten to turn off MOO, but that wasn't the cause of the problem.