The achievement Salt on the Wound, "Successfully inflict 10 wounds on Kralkatorrik during The End." appears to be bugged. Almost none of Kralkatorrik's weak points are actually attackable using Aurene's Dragon's Fury attack. I am able to hit the weak points on the head but none on the tail or wings. I've tried attacking the points ahead of my direction, behind, with different camera orientations, etc. but nothing makes a difference, making me suspect that this is a bug and not just user error. Using the combat log it seems like some of my attacks do damage, but the body/wing weak points always remain at full health. This blocks progress on the "War Eternal" Mastery and the Vision I: Awakening achievements.