Okay, @AntTheAlchemist, I downloaded your game, swapped in the latest SDL and SDL_mixer and saw it fail to play any sound.
I applied this fix to SDL_mixer, and it all started working again, so this will be in the next builds we ship:
The latest SDL works without changes, but you’ll need this SDL_mixer fix if you upgrade to SDL 2.0.6 or later. We’ll be doing a formal SDL_mixer release soon with this fix.
So you should be good to go now.
@bradharding, this should fix you up, too, I think.