So one of our chicks that hatched this morning is still walking around the incubator with the yolk sac still hanging out. It has started to harden for the most part, but is still very much attached to the inside. I have NO CLUE what to do. It's been on there for almost 12 hours now. On a positive note, this is our first hatch, and so far 28 out of about 40 have hatched. And more are piping.