The Special AA Essence of the Dragon (the green sarnak blocker) was added to autogrant when CoV released. If a character receives this AA via autogrant, and then completes the relevant EoK progression achievement, the quest reward window still appears to receive the AA. However, attempting to accept this reward produces the error message: "The system is currently unable to grant your reward for: Essence of the Dragon I (Group). Please try again later." Obviously, the correct behavior is to just silently eat that special AA award and allow the quest reward for that achievement to be closed out. Presumably, the same thing happens with the equivalent raid achievement.
