Client background music keeps playing in game

I recently started playing twisted treeline again and for some reason the music from the launcher won't disappear while in game. So if I don't want to listen to drums playing in the background my entire game I have to tab out and manually close the launcher, which I then have to re-open and log in after every single game. It's really a nuisance and the fact that I can't honor people after the game or see the score is even worse. It's game breaking not to be able to see your scores after a game. I mean, cmon it's 2018