Hiya! We got a fix back from Yoyogames and have just uploaded a new Mac build! Previously, some users reported crashing on load screens, starting during the act 2 concert, and for some users in the act 3 map screen. We never replicated these ourselves, so we can't test it, but we're told it should be fixed in this new build. If you had these issues before, please try giving the game a try and see if it's fixed for you! Thanks!