Anivia and her Q

ok so, I've been playing for a lil bit now and her q's aiming will go all haywire and that travels isn't in line with the shot, instead it's off to the side or not even there... Also, after you fire, the animation for it will disappear at times to where no one can see it. I'd like this to be fixed as i like her but not being able to see my q travel is kinda hard to get a stun on an engaging champion... will try to screen shot it if that will help to understand what i'm bringing up