same here .. the first time i got the ring i got doubles twice on rock skin and and once i made blue rock skin .. but after that i have made plenty rock skins, heals, poisons, antidotes, puris ... nothing, zilch, nada .... is it like 3 wishes ... works only 3 times?? i can understand it not working on ink and malleable stones as it is equivalent to collecteds and dusts ... but i wuld atleast expect it to work on all the scrolls ... has there been an update?? removing the rings effect on the scrolls???