Guild Wars 2

So, the Agate orb, which has Power, Precision, Vitality and Ferocity, and then crafting them to Exquisite Agate Jewel changes their stats from Power, Precision, Vitality and Ferocity into Power, Toughness, Ferocity and Healing.

Why, why do they change stats? Is this honestly a bug, or intended?

Thanks for reply.

44k burn in 11 ticks, and that was from 1 Engineer.

When doing the Ruined City of Arah Story mode and getting to part to use the cannons, it becomes impossible to use the cannons and thereby halts all progress for story mode and will not be able to continue.

When it began to do this, I do not know, as I just returned to game.