Ezomyte Infiltration Quest bug. Defeated Count Geonor counts as if he lived.

I defeated Coun Gregor and all bosses. I even cleared the map. Still game shows "1 monster remains" and map isn't completed. Look like if Count is still alive.
This happend to me two times today. Quest is completed and I recived Ancient Crisis Fragment 2x but on atlas instance is blocking my progress becouse is red and FAILED ;/ Pls help. BeatkaPL