Nearly all of my builds involve having slabs or stairs above my chests to create the idea that there is blocks above the chest. For 5 years on Xbox One this has been fine. Nothing has been wrong with this. Now all of a sudden this isn't possible?

To clarify, stairs and upside down slabs (slabs placed on the upper half of a block) still allow for a chest to be opened. But having a slab directly on top of a chest doesn't. I'm sure this isn't a bug and an actual feature set in place, but I figured I'd create this issue just in case it is actually a bug.