Running Bosses Bugged in Mono's?

I’m running fall of the outcasts at 257 Corruption with 1 Gaze of Orobyss. But when I have logged in tonight to play, even when I have enough stability and the boss yellow diamond on the right of the stability bar is highlighted, I can’t do the boss fight, nothing happens when i click enter echo. The only way I can fight the boss is if I run the 2 previous mini-quests, Thew ransacked camp, and i forget the other. This is a huge pain in the ass. Am I being stupid, or is this a bug? I’ve never had this happen before once I’ve done the boss fight once.

I am experiencing the same, as are many commenters on reddit. it seems to be a new issue with the patch.

As a work around, you can do the two “optional” quests and then you can go after the boss.