Products won't get sorted correctly

Hi, the cheapest product should be shown first. But when I choose the “low-to-high-price” it changes the products, but everything is mixed anyway?

https://www.dropbox.com/s/38s0fzu2ng74skn/Sk%C3%A6rmbillede%202016-11-29%2022.59.49.png?dl=0

Hello,

Could you please check how this works with default WordPress theme to see is it caused by our theme or not?

Thank you in advance

[Author]

Posts