Hi Ernest, to make it more visible again:
I am choosing “Hörbuch” as a category (screenshot1)
and the pages that are listed do not contain this category (not selected; see: screenshot 2)
These pages should be excluded from the list thoiugh and not show up because no category is selected. If nothing in the categories is selected they should disappear in the results.
Its the only way I found to be able to filter the pages by categories…