This wasn't your fault. It's genetics or bad nutrition of the parent flock.From a local farm very near me with a great reputation and very good hatch rate.
I candled the eggs and they looked amazing.
When the initial 6 hatched, dried and became active, they were running through the incubator banding into other eggs and even flipped some 180 degrees. I think that caused the unhatched chicks to have their heads moved out of the air pocket.
Since posting, I did some research. I floated them all to find the air pocket and used a tiny drill to make an air hole. I'm afraid I was too late, those moving and chirping 4vdays ago are lifeless. I believe the deformed ones that last hatched had brain damage from lack of oxygen.
Deformations do not come from the egg turned upside down.
Good Reputation can be bought, bad Reputation can be buried.
This farm very clearly has an inbreeding issue.