No, not shipped, picked up... Hens in good shape, My hens are in good shape also and some of my eggs look the same.. The only thing I can think of is my bator says temp 101-102 and humidity 45-50 up until day 18.. Ive run it about a degree cooler but spot on with humidity.
I would say temps BUT you said the other eggs are "farther along".. Im going to assume they are in the same bator? maybe hot spots??? What kind of bator are you using, maybe that will help me wrap my head around this..