Is the emblem listed in your redemption history? https://www.bungie.net/7/en/Codes/History If not, then it cannot be used. Bungie did a change back in Deep that enforces strict license/redemption checks on emblems to stop people using emblems that were acquired on a different Bungie account (or platform) than they are currently playing on/linked to. [quote]EMBLEM OWNERSHIP UPDATE Starting with the launch of Season of the Deep, emblem ownership values were updated. For security purposes, players who have emblems on their account that do not appear in their Collections (Collections-Flair-Emblems-General) will no longer be able to equip these emblems, and players will no longer be able to see these emblems if they are still equipped. Those who are affected by this change will need to reacquire these emblems through proper means by unlocking them in their Bungie.net profiles or on their platform if they wish to continue using them. Players who have emblems unlocked on their Bungie.net accounts and platforms are unaffected by this change.[/quote] https://www.bungie.net/7/en/News/article/twab-may-25-2023