Hi,
I have a site built on Pro 1.1.1 (Please do no ask me to update).
Everything works fine, and the site itself all works - https://www.greyhoundtrusthallgreen.org.uk
Last night Wordpress auto updated to version 4.9.2 (security update)
This morning, when I go into the header builder, the header is not displayed correctly. The builder itself is operational, but the the view of the header itself is all corrupted. This is how it looks…

It displays correctly in the browser, as you can see it should look like this…

Ok, things i have tried so far…
- Cleared all caches
- Turned off Cloudflare
- Optimised and cleared transients
- Restored site to a previous version
- Re-installed latest version of Wordpress
None of the above have fixed the issue, and all was working fine yesterday.
I have checked other sites running Pro 1.1.1 and have been updated to WP 4.9.2 and the header builder works fine.
Can you help please?