If you are late adding a super, is it possible that the bees will not pass the existing honey to fill it? I have one colony that was busting at the seams the 1st of July. Two deeps packed with brood and honey. I added a super. The colony apparently swarmed because the population dropped and about mid-July there was almost no brood and I found old swarm cells. Yesterday, I pulled a frame and had to look twice because it looked like they had taped a photograph of the "perfect frame" onto it. Beautiful! And here's me with no camera. Frames was mostly brood. Lots and lots of honey in the 2nd deep. The super (which had extracted frames) has been cleaned out but is still empty, and there are only a few bees crawling around on the combs. Or perhaps the flow has dwindled. There is still clover but not as much as there was.