I have a problem with multiple categories. When I place a products in two categories it seems that it gets placed in one of those categories randomly. But some of those categories are just there to display all subcategories to that category.
So this leads to an error on which it can't find the product when clicking on it.
Example of a product category: http://paardengruiter.nl/winkel/product-categorie/ruiter/kleding/
Example of a piece in that category that can't be found: http://paardengruiter.nl/winkel/kleding/bandiri-horse-of-love-topje/
That is in two categories namely: "Kleding" and "Ruiter". Now I don't understand why it can't be found. While if you type: http://paardengruiter.nl/winkel/ruiter/bandiri-horse-of-love-topje/ then it does get found. However I want it to be http://paardengruiter.nl/winkel/kleding/bandiri-horse-of-love-topje/