I haven't been in here in a while, but please explain how you incubated the eggs, humidity, turning, temperatures, incubator, anything pertaining to your incubation. If you've already posted this, please tell me where and I'll be glad to go read it. I am by-no-means a qualified expert, but you can read my initial hatching progress at the beginning of this post. And have hatched a few since.
I have an idea of what could well be wrong, but I need to hear how you incubated them before I give my opinion.
Bob