Multiple Clients opening up
I'm doing a repair right now on my client because of this. During my last queue a new, fully functional, client opened up when I accepted my queue. The sound was doubled, and I could chat from both clients. When I selected my champion a third client popped, going through all of the champions quotes who were selected simultaneously. once the game launched a FOURTH client popped up, along with the legacy client to start the game. I'm glad that waited to close a client because when I closed one, all four of them closed simultaneously. I took a screenshot from when it was just 2 clients, though I'm not sure if I can just upload it here directly or not.
Also my client automatically goes to the minimum size when I open it.