can see invisible champs on Aram and sometimes on team builder

even if their is no pink ward, no tower, or the drinkable item on aran i can see invisible champs for a few seconds when they first turn invisible these include shaco, Wu, and Akali. It just feels unfair when i can see the enemy teams champ when their trying to do a combo/ gank. don't get me wrong this bug has saved my life before, but i feel bad for the players that are losing kills/ games because for about 2sec after turning invisible you can still see them only thing that changes is their a little see threw before they go fully invisible. could be something new added to help players out but i haven't read anything about it yet.