A bug occurred while I tried to break a ladder. One of my people was on that tile of the ladder when it was destroyed and it freaked out. The character bugged out for a sec them appeared where the ladder went to before I got rid of making me make the ladder again to get him down. Could be annoying if its a giant ladder and would make you rebuild the whole thing.
Destroy the top tile of a ladder and while it breaks make sure a person if climbing up or down that tile, the bug should occur.