with this code, when i visit http://www.domain.com/producten/term1/subterm/product this gives a 404. As soon as I delete 'hierarchical' => true, within the rewrite part of the custom taxonomy and I only use one term, it all works.
So in short:
http://www.domain.com/producten/term1/subterm/product <-- does not work
http://www.domain.com/producten/term1/subterm/ <-- works
I've no idea what to do anymore, I've flushed the permalinks several times. I switched theme's during updates. I do have a feeling that I have to alter the .htacces file, but i don't really understand what to do. I've red a dozen of articles about this, but most problems are slightly different (or I dont understand it, because my english isn't that great).
Does anyone have any suggestions?