I've started working with mates that limit the degree of angles or distance that a part can move in relation with other parts. Mates with these icons;
I've noticed that sometimes these parts keep the loose icon in the feature manager tree -- , and some don't. And this same logic applies to parts mated to these limited movement parts, even when I fully define it. Why is this, and how can I mate parts so none of them are loose, except for the ones I want with the limited movement mates?