Hey, I was going for the Hero of the Ebonheart Pact achievement, "Complete all Ebonheart Pact achievements" and was having a look through my ingame achievements and have come accross one called Hearts of Darkness, I have the first objective unlocked and the last, but the middle one "Stop Tanval from unleashing the second Brother of Strife." isnt, is there any way to fix this or will i need to start over AGAIN?

thanks