Ok logged in and checked out the site. The menucard pages you’ve created were all using the menu card template except for that category, that was using a gallery template. This was due to two old pages, called gallery which were in your posts>trash and had settings for that category to use the ‘gallery’ template, instead of the ‘menucard’, which caused the system to get confused. I have deleted the two gallery pages that were in the trash and now it works via the menucard.
This is using the menucard – http://screencast.com/t/eckiCHOin