Lingering Special Effects

Rarely, sound effects from turrets, champions, etc continue to last if the sound effect happens immediately before I lose vision. And then after I regain vision, for the rest of the game that sound effect continues to loop whenever I have vision of the turret or champion, etc.

AND

Same goes for something like Riven's passive. If she gets another stack of her passive immediately before I lose vision of her, for the rest of the game it shows that she has 2 stacks (or however many it was at the time) as long as I have vision of her, and even the visual effect lingers.

Has been happening for over a year now, even with the new client.