[Client] Two instances of Client after Lobby Bug

I have not been able to replicate this. During an ARAM with some friends, I loaded into the lobby like this After this someone dodged on the enemy team and my timer counted down to 1 minute and my client was unresponsive.

I closed my client and reopened it, I noticed the sounds were repeating and then I looked and saw I had two clients running. As pictured here After restarting the client again the problem has not reoccured.

Regards,

Alex