Hi:
Upgraded from latest v3 SP Page Builder Pro to v4.
Site is running Joomla! v4.1.5, Fixter Template and PHP v8.0. Everything is up-to-date as per v4 upgrade instructions.
[Home] page of website will load OK, and also next menu [About] and next menu [Services], but clicking on [Contact] menu gives me a spinning black circle and then no pages will load.
Can login to the Joomla! Admin backend OK and can access the SP Page Builder Pro component. However if I click on any page to edit I just get a spinning black circle and no page load.
Clearing the Browser Cache will fix the fontend not loading for a brief while, then problem reoccurs - usually immediately after I login to website Joomla! Admin backend:-(
Problem exists across multiple Web Browsers and PHP v7.4, v8.0 & v8.1.