Suppose the default facing shulker box can open whit a slab/trapdoor, or any partial block orientation that can let it open.

In that case, it will open even if the shulker box is facing another direction and the partial block is in an orientation that will block the way of the shulker box opening, resulting in the shulker box opening into a block.

Similarly, if the default facing shulker box can't open, changing the shulker boxes orientation will make it unopenable even if it has no block coalition with that other block.

This bug allows players to access shulker boxes that they shouldn't and shulker boxes that they should.

+ blocks that do not have a hitbox change with orientation still get affected by this bug.