This is on MacOS v1.1.8 and has now happened to me at least three times. I'm not sure about the specifics of the first two times, but the most recent time, I was playing audio through my computer's built-in speakers and then switched to bluetooth headphones. Music stops completely and won't resume until restarting the game completely. All other sound effects seem to work; only music seems to be effected.  I normally would assume this is because the method that plays music is only called once during startup, but if that were the case, then surely the music would restart when the music track is supposed to play, like when entering a new area, but this doesn't seem to be the case; the music is turned off permanently as long as the program is running. I should also note that the music volume in settings is completely unchanged and still indicates that music should be playing.