Note: This troubleshooting guide may require that you make server-side changes to your website. If you are not comfortable making those changes, you will need to contact your hosting provider for assistance.
The Visual Builder not loading may be caused by a number of things and often there is no error attached to indicate the problem. Listed below you will find a few things that can cause issues with the Visual Builder initialization.
Each environment is set up differently and hosting providers can limit PHP directives value for various reasons.
Here is a list of configuration directives that are optimal for running a WordPress website:
We recommend running the PHP 7.0+ version (or at least PHP 5.6). Most hosting providers have an option to change the PHP version from their cPanel, however, if that is not the case you can always reach out to them and they should be able to take care of it for you.
Caching is a very complex set of systems that can easily cause conflicts between scripts. Make sure to always clear all your caches once a plugin, theme and the WordPress core has been updated.
Cache may include:
Browser Cache (Tutorials on clearing your browser cache)
Sometimes plugins can conflict with a theme or with each other.
Disable all your plugins and see if the problem persists. If everything is working once the plugins were disabled it means there's a conflict with a plugin or maybe even a set of plugins.
Enable the plugins one by one to identify the one that is creating the conflict.
The latest version
Make sure that you are running the latest version of Divi, Extra or the Divi Builder plugin.