[GAMEPLAY BUG] Karthus double q animation

Most of if not all of the time when you die as karthus currently his q will have 2 animations (perhaps only for the karthus player since no one has said anything in all chat about it) typically more noticeable when u attempt to use q outside of its normal range a sort of dead q (no dmg) will appear each time it is cast in addition to the lay waste at the end of your range. I will see this bug everytime I play karthus. Happening for several patches.