I am getting this error “Option validation failed to add product to cart” but Only with downloadable products that have options, other products with options seem to work fine.
If you click the box for the item only and add to cart without selecting an option the above error shows up in red on the top of the page, How ever if an option is also selected there is no error and item is added to cart.
Is there something I am overlooking as all worked prior to upgrading to 1.3, or has anyone else ran into this?
EDIT - UPDATE
Got it working somewhat.... see post: http://www.magentocommerce.com/boards/viewthread/37336/