[GAMEPLAY] Ashe arrow phasing through yasuo

On my friend's screen the ashe ult was shot out and went on cooldown and phased through yasuo. On my screen the ult was not shot out and still showed the green bubble of the ult indicator.

friends point of view: http://plays.tv/video/58e42debb0cdcd9b03/yas-was-a-ghost

my point of view: http://plays.tv/video/58e42ea48840d6c224/lel