Another thing could be the hen could've rejected the sperm.No, I’m just try to figure out how it’s possible that these eggs were clear when I thought he was covering everyone. I’m telling myself those particular eggs might have stayed in the coop overnight on one of the colder nights, killing the embryo. I’ve never had a clear egg from this flock, so trying to figure it out. They were collected the last four days before I started the incubator, so they were pretty fresh, and I had collected eggs five days before these, and they are developing.
I've had something similar happen to me. In one egg, nothing developed, and in another egg from the same her was developing. So it could be many thing's.