Explanation: Structures now float, unsupported in the air.
Evidence: Play any game mode
If replicable, how: Build a ramp, then floor on top of the ramp, then ramp on top of the floor. Edit the top floor and ramp so they don't touch the first ramp. They all still float.
Platform: Xbox
Very help details, thank you! I've sent this off to our QA team to look into.