This was reported so often in so many ways. There was even some official response one time I think," coding might be too difficult "then some guy posted how to do it (as dev) lol... My solution atm is to have multiple outputs plugged in when I start the game. Basically back of Mainboard for speakers and front for earphone let's you change(plugging in and out earphones) while playing the game between those two. Not really ideal... Games in the 90s could change audio sources while ingame already man, it's ancient