Bonus Potential Changes

Although that seems to be the case for the majority of items. The problem exist in the scrolls and stamps permission to work on a restricted list of item ids.

I...don't think that's the issue at all. The scroll does not work with legendary spirit. You quite literally have to have the item equipped, drag and drop the scroll on top of the equip, and use it that way. The issue is with legendary spirit, nothing else.