4.2.4 Concatenate Scripts in Admin Panel

Hello,

After upgrading to the latest version today I started experiencing a series of issues connected with anything that uses js or even css in the backend of the website.

Some plugin setting menus designed with css are broke, when I try to upload an image either the selection button doesn’t appear or the image uploads broken. I can’t even edit the permalink of a draft post as when I click it all it does is append #edit to the end of the url. Even tags fail to be added.

I’ve seen suggested to add to wp-config

define(‘CONCATENATE_SCRIPTS’, false);

But that only seems to be a patch rather than fixing the core issue. Maybe something went wrong in the upgrade? Is there any folder or file I can try replacing to get it working again? Many aspects of the front end seem to be broken also that are connected with backend use of js (social share buttons and fonts etc… as well as cache plugin).

Thank you,

Warmly,

Matt