I too am having this problem on a website I run, it is on the admin side, the plugin functionality on the frontend is working, I isolated the problem to be a function I recently added to my wordpress theme that removed query strings from static resources, the code is as follows:
/* Taken from https://kinsta.com/knowledgebase/remove-query-strings-static-resources/ */
function _remove_script_version( $src ){
$parts = explode( ‘?’, $src );
return $parts[0];
}
add_filter( ‘script_loader_src’, ‘_remove_script_version’, 15, 1 );
add_filter( ‘style_loader_src’, ‘_remove_script_version’, 15, 1 );
/* End */
I had to remove that code and simply install a plugin to handle that task, events backend went back to normal. I hope this helps.
Hi, in my installation I solved this by including the full path to the admin folder rather than having the plugin figure out the admin folder by the global constants.
