3 layered variation product not filtering products correctly
I have a product on Magento that has a lot of variations (3 layered attribute), varying by Colour, Length and size.
If the 1st attribute is selected e.g. colour=Black it filters and only shows options that relate to products that exist. This works but once you select a second attribute e.g. Length=short it does not shrink the selection of the third attribute to products that exist.