Hi!
It’s not that the plugin is not recognizing them, it is unfortunately not possible. The plugin can return posts, any custom post types (like forum posts, portfolio items, etc..), buddypress users, buddypress activity stream but not categories or taxonomies. It’s unfortunately not yet possible 🙁
You are not the first one to request this, so I’m working on the next version, which will contain this feature, but it needs proper testing before I can release it. I can send you a pre-release copy once it’s ready to upload to codecanyon.
Best,Ernest Marcinko
If you like my products, don't forget to rate them on codecanyon :)
