Arcade Corki's E - constant sound [Gameplay]

So the other day, I was playing a norm, against an Arcade Corki. About halfway through the game, my brother, who i q'ed with, starts complaining that Corki's E SFX wasn't going away. A few minutes later, It started happening to me as well. Corki e'd, and the SFX continued for a solid ten minutes or so, even when i was not anywhere near him, so long as my screen was on him, I could hear his E. It was extremely annoying and distracting, and only stopped randomly after a while.