In my humble opinion, it’s not so much the wrong section in the inventory that annoys people, but the need to refine crystals. When you refine crystals, neither the quantity nor the cost changes. In fact, only the material icon and the section in the inventory changes.
I’m sure if you ask players, most would wish you would remove the need for this unnecessary action and make the appropriate changes to the blueprints.
Please don’t answer us like that: