Hey, I found a VERY strange bug;
I turned on my headphones for this game. However, the game's audio doesn't play through the headphones; it plays from the computer instead. My headphones work perfectly with YouTube videos and other games, but not this game, for some reason.
EDIT: It seems like it's because the game doesn't detect my headphones as a sound device, and didn't auto-connect to it. I'll reset the game & try again.
Update: It worked!