TA003

that doesn’t change a thing. I can’t see the titles.

That also does not work.
The code is fine i think becaus when i change the query to:

$args = array( 'post_type' => 'product', 'posts_per_page' => 10, 'orderby' => 'date' );

I left out the ‘categorie_and’ and it works. So i think it is the query that is not wright? But i can’t seem to figure out what is wrong.

You can find the full code at this link:
https://pastebin.com/CKeGZisF

@keesiemeijer
i have tried ‘category__in’, that does not work either.

But this is my own post?

I have a post that is assigned to all categories. I have tried it with one or two categories but it gave no result.

What can i get the posts without an error?
The query works when i remove:’category__and’ => array( 20, 61, 74, 28 ), but i need to get the posts that ar assigned to different categories. It’s an online shop with a search module… You can select a color, a size, …