Hi Daniel,
First time when i made a category and filled up by kml file then tried to make a menu for it but it's showing empty map, see attached pic1 on the top.
But if I open another menu, which is pointed to another category and on the top I click to this category it's working, see attached pic2 on the bottom.
http://i62.tinypic.com/156v7gp.png
Any help appreciated.