+10 Dark Eternal Robe armor parts not exchangable to +10 Bloody Eternal Robe parts (2-2 stones, money available, sign near armor is: 0 not blue 1).
+10 Bloody Eternal Robe part (from this set) is OK, changable to Dark.
All of these parts changable to +10 Dark Eternal Heavy/Light etc as well.
We try after the augment has been removed. Both result: 0