SOLVED I don't seem to be able to apply the intrinsic upgrade to my weapon. I know for a fact I collected the intrinsic in the jar in Kell's Fall, as well as the exotic tonic recipe that comes with it. However, the tonic doesn't show up in the potion lab, and when trying to apply the intrinsic upgrade I'm met with "Intrinsic not acquired" and an orange text saying "Not currently available from the Revenant Fortress" (as seen in the image linked above). Within Kell's Fall itself there is no jar to collect anymore, and no text shows up to indicate a collectible when approaching where the jar should be. I've tried loading up the mission multiple times with the same result. Anyone else experiencing this? Found a single post on reddit with several people describing the same issue but no solutions: https://www.reddit.com/r/destiny2/comments/1hzns1l/nightsworn_iv/