So I was doing the thieves guild quests and got to the point where you have to become a nightingale.

I went there, followed Karliah, put on the armor that you get and when she asked me if I was ready to become a nightingale I said yes.

So we started walking to the gate where she is supposed to pull down the lever to open the gate and suddenly she decides that she doesn't like me and just starts walking to the exit of the hall. Wat..? Now I can't seem to even find her anymore and brynjalf (pro-spelling) just stands there telling me that we should trust her and take the deal over and over :l.

What to do? I already did the "wait 24h trick" inside the hall and outside the hall. I went to Solitude so the cell would be unloaded and then went back, but that didn't do anything for me. She still is somewhere there in the lands of the unkown where she can not be found .