The list of the items that have no materials cost that definately should are:
Maul
Legendary Maul
Burning Battle Axe
Banishing Mace
The list of items that have no materials cost that probably should are:
Ring of Embers
Ring of the Glacier
Troll Charm
Amulet of Warding
Cloak of Shadows
Additionally items that are out of order for auto-upgrade are:
Boreal Blade
Hunter's Short Sword
Burning Battle Axe
