hide attributes without products doesn’t work

Hello,

I’ve set a filter with size attributes. I’ve selected the field “hide attributes without products” and still one attribute with 0 products appear.
On the front office, it says that there’s one product available in the filter list but when I select it, 0 products are shown. I verified it in the backoffice and there are 2 products (one draft, one published)* with this size attribute set as variation but the stock is set to 0.

* we use wpml so each products are duplicated in 3 languages. I still checked all of them and none of them have a stock higher than 0 for this specific size.

Plugin (as the rest) is up to date.

Thank you