The Search bugged

Hi,

Im on the "the Search" where the quest log says "confront kanu and the first herald". I killed the first boss and died at the same time. Now I'm stuck as nothing happens when I´m in the boss area and the corridor wont let me progress.

Ive tried to switch between acts. I get the boss to display itself and scream ""My lady.... you must take your leave! I will bury these fools... I will bury it all! For the Saviourrrr" then he runs away and nothing happens..

Is there anyone that found a way for how to solve this?

resetted instance using ctrl+left click and that helped