Breeding Grounds Quest
I've come upon a glitch where if I defeat any of the three dragons involved in the Breeding Grounds quest before initiating it, I am permanently unable to start the quest. With the Trespasser DLC, ...
Forum Discussion
Sorry you're experiencing a known glitch. Unfortunately there's nothing anyone here can do for you
The AHQ is for "player-to-player" technical self-help and game-play discussions.
We're all just fellow gamers here, doin' the best we can...
You are correct that for any one of the three quests (They Shall Not Pass, Securing Safe Passage, and Breeding Grounds) which are supposed to be triggered by conversations with Baron Desjardins, if you complete it before talking to him about it you ill never get that quest in your journal and never get the reward for completing it. (You will, however, have a permanent " ? " map marker placed on his location in Suledin Keep. Maybe that's the reward?)
This bug was not fixed by any of the 11 Inquisition patches BioWare issued and they are no longer doing any work on the game. So unless the Community figures out a way to do it, you're stuck.
