so there is this bug with stairs I guess, basically if a building has multiple floors and the zombies go up the stairs, something (idk what) causes them to glitch and clip through the ceiling if it is low enough, or levitate if the ceiling is high enough, either way, they still act normal and from what I've dealt with, they don't seem able to attack, I got an idea, make a command that enables this called BA_stairwell_shenanigans and it enables this, it's off by default