I've found that out as I've gotten responses. I was just wondering if I wasn't playing the game correctly, or if I had missed some step or something. Seems that's the way it is for lots of achievements. I don't really care about completing them, as long as it doesn't affect my character.
Thank you for taking the time to respond!!
I was just replying to the randomness of the assignment each day. Being able to see the achievement doesn’t change the fact that the NPC will give same quest objective repeatedly. We still have to suffer waiting for the NPC to assign the last remaining objective we need.