So it' s a quick problem i got, I've been figuring out how these things has been working with item patches and all, but it seems to be that was not the problem.
I made a quick shoulders just for testing, but it seems to be so that it can be added into the game But the stats are not shown, the armor are but not the rest.
Im nearly 100% sure that im just missing something very easy and small, but i can't find it. pictures, the custom item is marked with a small Dark Fade.
Item ingame (Notice i havn't added armor to this item)