I think so, but every other option works. Though some of the misc items in the editor don't work when you equip them either. But it's nothing major, I heard there should be a big update soon best to wait for that one to come out.
Any of you guys know if the people who make this game have any method of detecting you cheating? I ask because the user agreement says they can permanently ban your account/license if you cheat/modify the game?
Okay, if you want to edit a "spirit cube" you'll need at least one of the cubes you want to edit. once you have one (of any power) right click it after setting up your inventory editor and change the power to your current level to get the maximum power you can currently use, next change the quantity to as many as you choose. Do this with all other types of cubes to increase your collection.