I seem to be unable to get Resonance in the Undermountain HEs most of the times. Others I play with who are in the same gamestate are getting lots of, while for me they only drop for like a minute and then stop for no visible reason. They are not capped already...only have 46.
Night Terror bugged under the map when he fell down the log bridge while I was fighting him. He was able to attack as normal, while nobody could target or injure him.