The easiest way to explain is how items are parented in the first place. If I wanted to say, parent a Hat to Genesis, I would move the hat to where I want it to be (on the head), and then in the Scene tab, I would drag the hat onto the head, and drop it. It will now appear in the Scene tab just underneath the Head (parented)
You need to find the Arm bands (or whatever you are parenting) in the Scene tab, and then drag the item back into the main part of the scene tab. Once you get them where you need them to go, drag and drop back onto the arm or hand or whever you want them parented to.in the Scene tab.