When I enable cache function the sub categories SEO url´s not work correctly, when I navigate from the top category and forward. For example if I click on a top category in the menu I get to the top category page. At the page all of the sub categories are visible for further navigation to each sub category, but here starts the problem. The text and pictures links are not the actual SEO url´s that I have configured. It´s the best thing if you can check it out for yourself.