Riporto dalle official patch notes

Dwarven Priests may now undertake the Molten Core discovery quest; "Attunement to the Core." By fixing this bug, we had to open the quest to all players once more. If you have already done the quest, you will not be required to do it again in order to access the Molten Core via the portal.
ogni voce che sostiene di doverla rifare per MC ? disinformata! Cmq un'occhiata la darei, soprattutto per chi non ? dwarf priest...