Hi I don't know if it just me, but I did max at least 3 Exotic weapon and I never got the achievement (Completely upgrade an Exotic weapon). I already search for that "bug" and people was saying just log out/log in and it should pop up or if not just wait one week and it will appear. But It been already near 2 week (maybe more) and I still don't have it. Can you please help me or rather fix it, because that's annoying that you know you should have an achievement but it doesn't appear.