I've progressed the quest A Rising Chorus: Act II to step 8 to the timegate, and I have also done the specimen 004 quest, but I am missing one of the Battleground options on the helm. The Delve option (which should show on the right above Enigma Protocol) is not showing up, and I can't figure out why. I've double-checked the abandoned quests to check if anything was accidentally put there, but nothing. I have no other season quests in my quest tab. There is no mission to launch on Nessus. What am I missing?