I can check on that one , not sure if he should be allowed to move that much from the spawn. Generically a mob can move at around 150m distance from the spawn point and not reset.
Fixed. The Nochsana General now gives up the fight and walks back once he is pulled out of his fortress, about 24 m past the gate. About the room: we tested it, and when you attack him the two monsters standing with him in his chamber (the Doc and the Runner) join the fight; the ones on the level above do not. If some of them stayed idle for you, please tell us which ones and where they stood and we will look again. Live after the next server update.