Sorry for late reply! And yes, it does not create a save nor will it save to disk and just gives me that error. And by autosave lagging I mean it's usually a page or two behind the one I'm on. I assume the autosave just saves every time a certain amount of time passes, not every time a choice is made or the IF continues to the next page. This isn't actually a problem, as I assume this is how the autosave is intended to work, I just mentioned it so you'd know why I wasn't just using the autosave, as I prefer manual saves is all.
Hello. Sorry for the super late response, I spoke with some other developers and as far as we can guess it's probably an issue with the browser/app you were using. If you were using the desktop app, that uses something called Electron which doesn't run JavaScript. Switching to the autoname saves function might help but if not, I would recommend trying a different browser/not using the app. If the problem still persists, please let me know.