Problem = Unable to complete Quarry Quandry quest.

So after reloading my save seven times before I could finally kill this boss without him falling through the floor or flying through a wall into the Great Beyond, I go to finish up the rest of the quests in the area only to find that I never can.

Fantastic. I told her that she was free to go as well, so I'm assuming she's just gone from my game entirely now.