[GAMEPLAY] Anivia's Q projectile is not launched, ability still goes on cd.
It's a relatively rare (happens maybe once every 3-4 games) but a dealbreaking bug that causes Q projectile to never be actually launched. Ability still goes on cd. It's hard to notice in the video, but you can also "reactivate" the non-existent projectile, like the ability was cast properly - I was tapping the Q key so after the 0.2s cast timer, I reactivated it and the ability went on its regular cd.
There is no particular way to trigger it, it just kind of happens at various random times.
The bug first appeared on the patch where the current Q code went live and the previous broken Q that made you walk into people was fixed, 4.19 I believe? In any case, it's still there.