https://www.gamespot.com/articles/last-chance-for-destiny-2-nightfall-strike-inverte/1100-6453289/ >The first weekly reset for Destiny 2 has occurred, bringing with it a new Nightfall. This one features The Inverted Spire Strike--which you might remember from the Destiny 2 beta--and it's available right now until September 19. [Update: Today is the final chance to complete this week's Nightfall and secure its desirable rewards before the weekly reset. With the release of the new 1.0.1.3 update, you'll now be able to do so with the Prism modifier working correctly.]