We lost one of ours. She had a prolapse, so I am guessing an egg came out wrong or it was too big. We noticed a bit of blood under the cage and found her. We seperated her, but she didnt make it. None of our eggs have hatched yet, which makes me believe the incubator they were in malfunctioned. It started alarming for low temp and I could not get it to increase. I changed them to a different incubator, but so far no luck.