I started a bunch of new colonies at the start of June with a frame of brood and a new queen. All of these hives were started out in a 10 frame deep with 2-3 frames of pollen, 4-5 frames of honey, and then a frame of brood and an empty frame. Out of all the colonies I started the majority of them have moved into a second and even a third deep with brood and nectar storage, however I have one colony that is lagging behind. I haven't had any training in disease identification and I honestly haven't had to deal with it up until this year. The hive that is lagging behind has a pepper box brood pattern, the cells cappings on the brood are all sunken in, the queen has either absconded or been killed as there are 4 emergency cells started. I stuck a little branch in a couple of the cells and stirred it around and tried to draw out the brood, of the 3-4 cells I tried only one really drew out with a snot like consistency but it didn't really come out of the cell all that far if at all. The other cells I tried this in it was almost as though they were hollow and dried out. I will try and have some pictures up by this coming weekend but any ideas would be helpful.
Quick edit, there's no sour or distinct smell coming from the brood that I could detect either.