I create a new custom type "Brands".
My first post with this new type is "Pepsi".
I allocate the category "Drinks".
I also have allocated a normal wp post to the category "Drinks".
If I go to wp category I see two allocated posts. If I click on 2 only the wp post is displayed.
If I go to custom type category I also see two allocated posts. If I click on 2 only the custom type post is displayed.
The problem is, i have a theme where I can show all featured images from a category. But now only the wp posts are displayed, not the custom type posts. Even these posts have the same category.
Thanks for your help. If you need any other information, please let me know.