Classic elements are the only ones that work in Cornerstone

Support
#1

How do I fix this annoying issue?

#2

Hi there,

We need to investigate more regarding the issue that you are experiencing.

Kindly first of all make sure that you update the theme to version 5.2.2 and Cornerstone to version 2.1.3.

If the problem persists kindly get back to us with a URL/User/Pass of your WordPress dashboard using the secure note functionality of the post.

Thank you for your patience and cooperation.