WPMU DEV Dashboard not displaying correctly

I have installed the WPMU DEV Dashboard on this site, however, the style is not appearing.

It shows only the content, text and images, in a confusing fashion. While it still works to install plugins, it is a lot less usable since images appear huge given the lack of style.

Other plugins, like the Ultimate Branding, display correctly. Only the dashboard seems to have this problem.

Is there a way to correct this behaviour? Any suggestions? Thanks in advance :slight_smile:.