I have a script that bulk creates attributes and sets in Magento. The attributes and their sets look fine, and the settings are correct. When these attributes are created, I use AMartinez's customimpertexport script to bulk import products. These products do have the attributes correctly filled in.
If I look at a product in the back-end, they are there, with the correct values. When I take a look at the front-end however, the values are not displayed. Also, the layered navigation does not work (probably because of forementioned bug).
This makes me think there is something going wrong with linking attributes to products.
Since I'm pretty new at Magento, I don't know very much of it yet, so any explanations on how or why would be apreciated.