Hi Kunden,
Thank you very much, I see the problem now. The items showing up there, are the ones from the categories, that are not used within the filter.
I think, that in your case changing the filter logic is the way to go. I have changed this option right here: https://i.imgur.com/Sp2KZUA.png
That should do the trick.
I am seeing the same styling on the front-end, it was probably a cache issue only. The browser/site cache can be aggressive, clearing them once changing the layout should resolve issues like that 🙂