Eek! I’m sorry to be a problem child tonight-- While trying to verify my blog with Mastodon, I accidentally put my verification link in my site’s Title (dumb, I know) and now my site’s title is showing up with a URL fragment in it, and the Design page stalls out when I try to save any changes to go back. See the screenshot below. I’m sorry!
Oops, sorry about the update button hanging. I believe this is an issue I’ve been tracking down with custom domain names where sometimes it takes too long to update.
For now I’ve fixed the blog title on your site.
No sweat at all, I’m just grateful I didnt permanently break it 
Thank you very much for your help, again, Manton