Aatrox Q

This bug happened twice in one game, so I think it should be pretty easily replicated. I was playing as Yorick into an Aatrox, there were two instances where this bug happened. I don't believe that the items we had mattered because it happened pretty early on and then again 5-10 min later. The aatrox tried to preemptively Q out of Yorick's W before it formed, and instead of traveling, Aatrox just floated up and then came back down. If needed I have a replay of the game.