"Untitled" still appearing on some blog posts.

Site URL: https://www.centricengine.com/

Hey all, 

I know Squarespace has a lovely fun bug that removes the site logo and title if you touch the SEO settings. Fun stuff. 

I've fixed it back to the logo and proper site title Centric Engine. 

However, some blog posts are still adding "Untitled" to the end of titles when sharing on social. Now I fixed things over a week ago, so it shouldn't be still pulling bad info. New blog posts don't have the "untitled", just old ones like this:

https://www.centricengine.com/explorations/whos-who-on-the-farm-redux

Any thoughts on why this is happening and how I might fix?

Anyone have a time machine so I can go back and slap myself before choosing 7.1?

Thanks 🙂