Cassiopeia's W

I'm just reposting this issue that someone else posted in the Miscellanous section.

So if you haven't heard already, sometimes Cassiopeia's W is invisible to her enemy team.

I was playing a game as Ahri and I literally couldn't see her W animation, however I could tell which minions were affected by the poison.

Please fix.

EDIT: It's actually not in the Miscellanous section and I cant find it lool