I first found this bug when making a single player map a while ago, but I did not really know how the map editor worked back then, but I have encountered this bug again and it has become a problem.
So I was making a parkour map where a huge movable moves right so that it pushes people of if they do not keep going. I also had ships falling on people. I found that a once animated falling ship would stop the movable from moving when hitting the ground near it. Its annoying because I cant really make the map while the falling ships keep messing stuff up.