'Wordpress theme Flatsome 3.11: UX Builder not loading

I've just installed Flatsome theme version 3.11.0, wordpress 5.4, php 7.4, mysql 8.0 on my SSL protected site.

I disable all plugins, not even one. First, I can edit home page easily. But when I edit other page, like contact, about... it was not loaded. I checked console, has a error in image 1.

Uncaught TypeError: Cannot read property 'isRoot' of undefined
    at t.value (editor.js?ver=3.11.0:2)

But I refreshed page while console opened, no error display in image 2. That error only show when console closed.

Please help me, thank you so much.

error displayed when open console after load page error not display when open console before load page



Solution 1:[1]

I had a similar problem, and between clearing the cache, and switching to the twenty Twenty theme the problem fixed itself.

Solution 2:[2]

I've faced this issue on various hosting platforms, and the solution has been different. Listing some of those here:

  1. If you are using cloudflare, disable cache, preferably enable developer mode, while you are doing the edits
  2. If you are using any caching plugin disable those
  3. Ensure that you are using the same scheme (http vs https) to serve your site as has been added to your wp-config
  4. Reload the page after you've disabled all cache

Solution 3:[3]

Temporarily disable catche plugins and it would work.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Dharman
Solution 2 Gaurav
Solution 3 sunit das