Jinx Auto Attack Bug

I've been encountering a bug with Jinx's auto attack while using Fishbones. Occasionally when an auto attack fires, if Jinx turns around even if the rocket is about to reach it's target it completely disappears and does no damage. Allied and enemy players can see this happen and it has often made the difference between a kill and no kill. I think it may also be happening while using Pow-pow but it's a lot harder to tell due to the animation. This has been occurring for at least two months fairly inconsistently but often enough to the point where it can create and issue with CSing as well as fighting enemy champs.