Hey there! Did you use the Scythe during the Boss fight? There is a known issue where any other elemental kills (scythe, firefly, enemy explosions) can fail the challenge. [quote]The Empty Grief Seasonal Challenge will not be completed if a player picks up the scythe that spawns in the final encounter, or use of weapon traits that cause explosions, such as Dragonfly. Players should complete the encounter with their equipped weapons to complete the Challenge. [/quote] via the [url=https://www.bungie.net/en/Explore/Detail/News/51489]6/23/2022 TWAB[/url]