Shipped eggs?? I'm wondering if they got too cold during shipping since there was a cold spell. One incubator I think the humidity was too low as well. All this is speculation but have had better luck than this before.
Sorry about the rest of the hatch, hope the next one goes better. That cold weather could have played havoc with some of the eggs that is for sure, and shipped eggs usually have a rough time even at its best. Not sure if you have seen it, but there is a great hatching article in the Learning Center, it covers a lot about dealing with shipped eggs https://www.backyardchickens.com/a/hatching-eggs-101
Thanks Kelsie. I'll read that article right now. I did have chick hatch last night and another is working on it now. The ones that have or are hatching now were shipped with a heat pac. The others were not.