I'm having some hatch issues. I had 3 eggs hatch pefectly, no issues. The 4th pipped and zipped but never came out of the egg. I opened the egg 8 hours after it poked the first exit hole in the egg. It was completely dried. The chick was dry and it was stuck in the shape of the egg. I used olive oil to help loosen the dried up feathers so it could unroll. This chicks feathers are not very thick (its A solid white coturnix so I could be mistaken, it also has some oil on its feathers that might be making it look the way it does). Its toes are twisted all different directions. I had the belief that toes issues like this resulted from a humidity isssues. Someone suggested it could be genetic. I'm not ready to accept a genetic issue with the hatching issues I've experienced lately. I recently also forgot about a hatch and had chickens falling off shelves in the Bator and I shrink wrapped two Silkies and had to open them. They survived. But I also noticed the membranes were dried out on these two eggs as well.