i had this same issue but I fixed it - do you know how to open terminal? (it should be pretty easy to google if you don't)
what i did after opening terminal was paste this: xattr -d com.apple.quarantine
then press spacebar (so there should be one space between quarantine and the next thing), then drag the app's icon into terminal (this will paste its location into terminal), then press enter to run that code
my game worked properly the next time i opened it, no infinite loading - hopefully this works for you too!