Does somebody know how to get the "Stand your ground" action during the "Flesh and Bone" quest ? I do have the "Rejoining" quest marked as resolved, and got the hint to save neither of them, but to stand my ground. Is there another prereqeuesite ?

Problem solved.

You have to get rewarded by Misallyna before you actually head the warning. Guess the character doesnt take the warning seriously the first time.