Hi, I had three eggs remaining in my home made incubator. All three of the eggs died. I did eggtopsy and this is what I found. They haven't piped internally. None of them. They were wiggling a lot that means that they were trying to break the inner membrane but were not able to . I would like to know what are the possible reason? Could it be the humidity? as you can see below the membrane looks dryish. The head was still under the wing and the the chick was inside the inner membrane intact. What could have gone wrong?