Stock by Attribute v4.0 addon for v1.3.5-1.3.9

[lunabug]

Hi!

Just installed this and it seems to be working in most cases. The problem I'm having is on an item with 2 attributes. When I set one of the items to 0 (out of stock), as a customer I don't see that item as out of stock until I add it to my cart, but the problem is when I add the same item with a different attribute and it ALSO show as out of stock when it really is not.



First one has no stock, when added to cart it informs me such... ok
Second one has 11 items in stock, when added to cart, it says the same thing as the first item... not ok



I have a different product that has only one attribute and it's working as expected and showing 'out of stock' on the product page.

Thanks,
Leslie