I'm at the final debugging stages for a major web design project I've been working on for the last 6 months.
The site itself is based on the has become a bit of a behemoth (merging 4 existing sites into 1 massive one!) with various custom post types etc...
Getting to the point - my Category and Tag archives are no longer working, if you click on a category/tag in the sidebar while in any of the blogs, rather than take you to a list of blog posts within the same category/tag, it just goes to a list of nothing:
Example category/tag archive:
I've based the site on this template; Carbon Light: http://otwthemes.com/demos/carbon-wp-light/
I've been wracking my brain for the last few weeks as how to get this working - but it's beyond me - could someone be helpful and point me in the right direction as to how I've screwed this up somehow!