Assuming it's an update that only works through the app, and not one you can just download from itch.io (which says it was last updated 3 days ago) then no, because the old, working version I have won't (or can't?) auto-update, and the new version is still broken.
Also, I thought to try the browser version in Chrome, instead of Firefox which I had been using, and it turns out it only partially loads (same as what Waltz 89 got) when using the browser version in Chrome.