Sorted by prize makes most/all the products disappear from frontoffice

[WorkWearbyFraadserie]

When you use sort by price in front office, most/all of the products in that category disappear in some categories. It works fine if you sort it by name and relevance. 
We are using Prestashop 1.7.2.1

Link to some of the categories were it happens:
https://wwbyfraadseriet.dk/48-jakker?order=product.position.asc
https://wwbyfraadseriet.dk/43-trojer?order=product.position.asc
https://wwbyfraadseriet.dk/66-bukser?order=product.position.asc

If there are 10 products in a category, it will still say that there are 10 products after most of them disappear.

I hope someone can help us solve this problem.

[WorkWearbyFraadserie]

That is weird, I tried clearing cache ect. and it still happens on Firefox and Chrome on my laptop and all of those laptops we tried here.