Page builder doesn't load
There's a known issue on multisites when page builder may not load in Google Chrome and possibly in other browsers. This happens when multisite network is configured to redirect administrative pages to the original subdomains, while front-end is loaded via mapped domain.
Follow these steps to resolve the issue:
- Go to Network Admin > Settings > Domain Mapping
- Uncheck option for "Redirect administration pages to site's original domain (remote login disabled if this redirect is disabled)"