Hi!
sorry that this cannot be changed…
but I managed to hide the variations from theme settings/shop/
I turned off the Show variations on quick view and the “Quick Shop” for variable products
so this is a solution to my problem…
I noticed that the problem was also at the quick view of a product, all the sizes was there even the out of stock. What is the difference between those views (shop page, quick view) and the single product page, where the out of stock variables turn grey (correct behavior)?