Hi! This is my first hatch ever, and I'm kinda bummed. 6/6 bantam eggs made it to lockdown (Day 18) with nice big developing moving chicks at Day 17. 3 pipped on day 19, hatched on day 20. The remaining 3 eggs never pipped. I pried one's aircell open and found this: It seems fully formed and ready to go, positioned where it should be, but never internally pipped and died. The enclosing membrane seems to be on the tough side, but the chick itself is pretty wet. Humidity issues? At what stage? Lockdown was around 75%, sometimes a little higher with the hatching ones. Thank you for your help!