Same problem. I've uploaded a save, standing in front of Lady Webb. Maybe that helps. The journal says I've gotten the approval of the Crucible Knights and need to talk to her.
https://dl.dropboxusercontent.com/u/41251916/120353e4fe9344fa9d841dfcc1a70ab2%2014207697%20HadretHouse.savegame
Also, I'd noticed that Webb allowed me to select the "burned bridges" option even before I talked to the Clyver about the hearings. I didn't think much of it at the time, figuring it was just a shortcut for people who didn't want to go to all that trouble. Never selected that line and instead went directly to Clyver. Now, after looking through other threads about Bugs with this quest, I guess it should only be available after you really mess up your relationship with all three factions, like attacking their members. My standing with the Crucible Knights is "Champion" but I remember that I accidentally attacked two justiciars with AOE spells during that whole Forge Knight riot. They went red and I had to kill them. Just those two generic knights and nobody else ever commented on that. Maybe that has something to do with why the game assumes I've got no other chance to get into the hearing.