Hi,
I've been dealing with Hikashop directly with this issue and they have said it must be a template issue. I have updated Hikashop and Joomla and have installed the StoreFront template separately (not the quick start package).
In fact, on both the quick start package and the seperate template installation. I encountered the same issue.
Issue:
When creating products in a catagory (3 levels in) and using the menu option in joomla (Hikashop catagory listing), the catagories display perfectly fine but when you try to get to the last category that holds the products, nothing displays.
Hikashop believe there might be some sort of template override.
Is this something that you can help with?
Many thanks,
kyle