Bad Quantities in BO , but good in product quantities. (when edit)

[psyho997]

Hello.

I really need your help.

When I go to back-office to the Catalog/Products I can see that the quantities are wrong. Some are even showing "0" but when I go and edit the product I can see all the right quantities. If I change the quantity of one attribute and save , this is  suddenly fixing the issue. Now in back office the quantity and status are correct.

 

What can be causing the issue ?

Prestashop 1.6.1.13

 

This has been a nightmare for me for a good while now.

 

Really would love some help.