I updated Cornerstone and now when I go to a page and click Edit with Cornerstone, I am unable to see the preview of that page. I experienced this when trying to update the Worship page. Please help. I need to update this page today. Also, Cornerstone looks different as well as the Customizer. (Appearance -> Customize.)
This is so frustrating. I just updated ( 5 hours later) Cornerstone on another site and am experiencing the same problem.