hey i'm having the same problem and i'm on mac too... from experience it could just be that we're using macs, they dont seem to load up stuff on here well
edit: i think i fixed it you could try this . open the file in a new tab, open the contents, open macOS, than open PNGTube-remix exec thing (idrk the name of it lol) and uhm yea it should open and say debug!