When audio output is switched while the game is open, the audio goes silent and cannot be restored unless you close then reopen the game. In my case, I have bluetooth headphones and if I don't turn them on (thereby swapping my audio output to them) before opening the game, I have to close and relaunch the game. If they time out & turn off I must do it again. Hope it can be fixed so my steam friends don't have to see me opening balatro like 30 times a day lol