Page builder is optional, you can deactivate it.
A) Deactivating Page Builder doesn’t fix the issue.
B) No, I really can’t just “deactivate it.” All of the site content is in Page Builder containers.
Page Builder is a fantastic plugin and also not the problem.
Does activating parent theme solves the issue?
it is difficult to diagnose the issue from the front end, Try deactivating your cashing plugin.
if that does not solve the issue, try deactivating all the plugin and start activating one by one.
– Activating the parent theme works; however, that defeats the purpose of using a child theme.
– Disabling the cache does not solve the issue.
– Disabling all plugins does not solve the issue.
– Removing all child theme CSS does not solve the issue.
– Running an empty child theme (i.e. no customization, just the template tags with an empty functions and stylesheet) does not solve the issue.
Ok, zip the child theme, upload it somewhere, let me have a look into it.