does it work in a browser on mac?
This happens on Safari and Chromium browsers, but on Firefox everything works.
Is itch using WebKit on macOS?
PostJam3.loader.js:1 Uncaught (in promise) RangeError: Maximum call stack size exceeded at PostJam3.loader.js:1:5827
thanks for testing different browsers, I disabled "Compression Format" in unity which will hopefully fix it
That did indeed fix it