Hi there,
I'm using a relatively fresh install of Moodle 2.5 and had the theme designer mode turned on to edit a custom theme. I've since uninstalled and deleted that custom theme and reverted the site to 'Clean'.
However when I disable the Theme Designer mode, the page renders entirely unthemed. There are no stylesheets included in the source code whatsoever. I've tried purging all the caches and switching between other themes with no success. And as soon as I re-activate the designer mode the problem vanishes.
Screenshot of unstyled page attached.
Thanks in advance,
Justin