SOLVED: Jellyfin doesn't display favourites properly

[kandykarter]

This is a bit confusing.

I assume you clicked on Favourites directly on the homepage, next to Home. I don't actually know what this does or what it is supposed to do, but if you click on the library first and then on Favourites (which is now among Movies, Suggestions, Trailers, etc) you get the full list.

Not in my case. In my case, going to the actual favourites behaves as I described above. There are currently 4 of my current 16 'eligible' movies showing.
https://imgur.com/a/LapNvlw