This is the problem with favourites, making them useless.

You don't add shields to favourites, you add 8h shields.

If you add 8h, 1d, and 3d shields to your favourites, you don't get just shields in your favourites, you get 3 entries in your favourites.

If you then add, say, townscapes, 1d, 7d, villein, black castles, etc, you've just filled up your favourites, making you scroll, and you may as well have no favourites.

Instead, of, as you expect, adding shields.

I want to go Favourites - "Do I have a shield on?" Not, do I have an 8h shield or 1d or whatever.