Lulu Auto Attack Bug [GAMEPLAY]
This bug only seems to occur if a team has both a Pool Party Lulu and a Pool Party Zac, and as a Lulu main, I have been in a few games with this exact same scenario. Lulu's auto attack's have a different sound effect, I think it's actually Zac's auto attack sound effect, and it's only when a Pool Party Zac is in the game. It doesn't interfere with the gameplay, I just find it extremely annoying to deal with a constant loud splosh-like** squelch **every single time you attack something..
I believe all you need to do is have both a PP Lulu and a PP Zac in a game on the same team for her attack sounds to switch over.
Since Zac isn't an insanely popular champion, and meeting people with this specific skin for a champ that isn't extremely popular is even less likely, I have only encountered this annoyance a handful of times, but many more than one, mind you. It was every single game with a PP Zac in it.