Quote from crazyman85: “Sorry for the double post but... I tried to create a new map and this time it worked. There is nothing to understand ! Thanks for all the help you gave me guys, I'm going to work on my custom story :)” I think I know the problem/solution When you started creating your first map, did you first build around the blue circle in the middle? If you didn't, then that's why you fell through the floor. I had the same problem with my first ever map, but then I tried again and built…