out of stock showing

Hi,

I am trying to import the csv attached to this message. When I import it via "Import products from text area" the products imports correctly, but on product page there is no stock and cant be added to the cart even though there are -1 everywhere in the product_quantity column in the csv.

In characteristic I have all the variants correctly created.

Thanks
Vaclav

EDIT:
I found out that when I delete the characteristics at product editing, add them again and save the product it behaves normally then. But this would be quiet complicated to do for each product...