I've heard of it, but have never seen it. Are they alive? I've heard that when they turn upside down in the cell they lose contact with their food and starve...Anyone ever run into this I've been a commercial beekeeper almost 30 yrs never seen anything like it ill post up some pics ill keep a few.
I have seen this as well, though I was never sure what motivated them to crawl back in. I theorized they were looking for protection.What are the ages of the cells? If the virgins are mature and they hatch and are not immediately attended by nurse bees the will crawl back in looking for jelly remnants to eat. The get stuck there and have to have the rest of the cell peeled back to release them if they are still alive.
Could be. The cells are very delicate for the next 4 days after they are sealed and could probably get damaged quite easily.Perhaps pulling a frame and rotating it during an inspection at a critical juncture might cause it to happen?