If all 8 slots have at least legendary gear equipped in them, then try the switch profile thing. In-game settings -> log out -> switch profile, this has worked in the past for unsticking achievements but it isn't a guaranteed fix. You may be stuck waiting out Xbox unlocking it. [quote]do you know when the next season in D1 is coming, and if the seasons can give you legendary artifacts?[/quote] Destiny 1 isn't getting anymore content, its in permanent legacy mode now. No live events/trials/iron banner/additional content etc.