I am having an issue in the slaver fight in act 2, in the guarded compound of the temple district. First of all it I never had to fight the glabrezu on the first floor (everything else spawned and i fought it) although the animation for the glabrezu spawning did seem to occur (i ran forward and triggered it with a stealthed character and then ran back towards the entrance to try to fight enemies separately) I dropped a few cloudkills to offscreen kill the efreeti, which may have killed the glabrezu although to my knowledge no damage information for the glabrezu was displayed in the console. Now I wouldnt be too concerned if I didnt have to fight him haha but I am just giving background for the true problem.
I ran up the stairs to the main fight and immediately came back downstairs, and seemingly due to the best RNG in the world, only koshi came down after me. I killed koshi (taking the celestial fury!!) and was able to save. Next I tried this again, and was able to get only ketta (!!!!) to follow me back down... little did I know however that wasn't as great as it seemed. For some reason the ketta is absolutely invincible. I tried conventionally quite some times, getting her down to "near death" and letting my team wail on her for 15-20 minutes to no avail. Then I did a little researching and enabled the console (it was not previously enabled) and tried using the kill command on her, which does nothing besides bringing her down to "near death" status.
I got off really easy getting the katana how I did, (it was the entire reason I went there) so I would really like to avoid having to roll back my save, any ideas on how to fix this issue?