I killed a spider sitting on his lair. Afterwards no reward icon was showing. I moved onto the lair and no reward was given. I ended the turn there. The next turn the icon reward chest for the lair was again showing as it should. I moved off the lair and then back onto it and was rewarded with an item. It's obvioulsy bugged in some fashion. I had this happen under beta 3 as well from time to time.
