[GAMEPLAY] Syndra W Bug

So in this short video that i do you can see that syndra's w is weird but what you can't see it's that when you are un lock screen your sreen is shaking cause of syndra's movements caused of that bug.

I don't know exactly how to do that bug execpt that you have to press w. It didn't happen all the time. And i know that it work with all kind of party and also with the skin Syndra of snow and Syndra of Atlantide.

I notice this bug since patch 7.10 i don't know if it were there before.

I'm sorry for my bad english ( i'm french ) and i hope Riot will be able to fix it cause it make me in trouble when it happen.