*building has been disabled*
— Fortnite: Battle Royale Leaks 🎃 (@FNBRLeaks) October 13, 2018
The player is seen connecting floor ceilings to the side of a building in Tilted Towers, then destroying it and quickly rebuilding the spaces that broke. Then, he edits the floor to be missing a square, builds a ramp at the other end, and destroys it. What happens next is every wall/structure above that level was destroyed, despite being connected to other objects.