[GAMEPLAY] Azir cooldown bug

Periodically after Azir uses a spell the spell doesn't show as having been used, so it looks like it's off cooldown. Most common with the Q which isn't too problematic because it has such a short cooldown anyway the few seconds where you think its up but it isn't aren't usually too damaging but it also happens with his E and Ult which is much more disruptive.

I am unsure of the exact requirements for the bug to occur, it seems to happen at random. I do have all of my spells on quickcast and have range indicators on. I also mostly play on Dominion but have seen it happen on Summoners Rift as well.