If I am not mistaken, the OP removed the egg from the incubator after cutting. If you did, I can just about promise that is why it died. The developing babies need the heat and humidity, take that away and the baby will die.

You need to study some more on taking care of your eggs and hatchlings, I think. This should never have been an issue, cutting early or not. If you didn't know enough to leave the baby in the incubator, you really need to learn more about this process. Period.

Gale