Thank you for your answer. Now I know that for the future too, very helpful in similar situations.
I looked carefully now and found out what is going on. It works (but I didn’t notice it because the category looked like an extension of the tags). What is missing is a symbol for the category and the word ‘Category’. Now it is just a simple dot.
Question: how to get the right symbol in front of the category, and the word ‘Category:’?
Just to be sure, I will put an image here about how it looks like now.
This way, it might not be necessary to give login credentials and such.

(Tag: Weather)
(Category: Tea)
Kind Regards, V.