Sorry I forget to tell you: You have to use the dropdown menu on the bottom right “Sortieren nach:” and then select one of the options “preis aufsteigend” or “preis absteigend”. Then $args changes but not the post list.
Yes I am sure. I looked in the database and the meta_value is for example “27.89”, so it is divided by a . Also the advanced custom field is set to numeric.
Thanks for your time!!
