I know this has been addressed before..... but here I go.if you have the link to a thread please post it of help me figure out what happened to this batch. I had 12 or so eggs in bator doing great , all growing , then on day 24 one lone chick hatched.........I waited another 2 days and broke open the ones who did nothing......they were all in shell,no pipping,fully grown,dead ?? Made me sick. Temps and humidity were right where they were supposed to be, I didnt even candle these or open bator near as much as I have in the past? any ideas?