Is there any way to make this retro active? I mean my character has a quest completed log so it doesn’t seem impossible to me. Maybe I’m wrong.
Do it with a new character 
Yeah, they said that some achievements are retroactive while others aren’t. I’m not sure which are which, but I think it’s purposeful.
Unfortunately, I don’t have time to get another toon through ultimate at the moment 
I really don’t mind not having all achiements, I’m just asking if there is a technical limitation preventing this being retroactive. Since I did finish the game already.