Please update or fix or do whatever needs to be done. When you put your cursor over this and many other 'waist' items they originally say they are 'charm' slot items. you have to actually click the link and see the other screen shot of the item to find out its actually a 'waist' item and not a 'charm'
the Bonedigger Decorated Belt is another one.
if you do a search for charm slot items for lvl 65+ you will see a whole list of items that when you cursor over the link say they are charm items but in reality they are all waist items.