I upgraded to Pro 3.01 yesterday and am getting a 404 error when clicking any of the builder links (headers, footers, content, templates, global blocks, theme options). The rest of the site still appears to be working.
I saw that an upgrade to 3.02 would be available and expected to help similar errors. (https://theme.co/apex/forum/t/pro-3-01-console-error/64467)
I upgraded to 3.02 today but still getting the error.
Before and after the upgrade, I disabled all other plugins, restarted the server, cleared local cache. No changes to behavior.
Any help is much appreciated.