Arcade Riven Sound Bug

I recently played against an Arcade Riven, and the sound that comes during her E, lasted the entire game, and was needless to say... INCREDIBLY annoying. It was only audible when she there was vision on her and the camera was looking at her, but that meant fights with her became very, very, annoying. I took a video of this on my phone, but the quality is rather poor, and I'm not sure on how to post it, but If you would like to see it I can do my best to show it.