Originally Posted by Statikk
We actually finally got a recent consistent reproduction of this bug internally, so we can finally throw resources at this to try and fix it. This fix will not solve that problem, though hopefully we can get an engineer to look at it sooner or later once their hands aren't tied up.
This occurs consistently on skills that are particle skillshots or have secondary particles attached to a model (Anivia's Ice ball, Nidalee's spear) And on any brush or area that a team has no vision on.
This is such an easily reproducible bug...