Got several rounds of eggs in the incubator and I am having trouble I had 1 out of about 12 hatch, cracked open the ones that did not hatch all had fully developed chicks in them. When I cracked them open I had the hardest time tearing through the inner membrane. A few of the eggs I have tried to cook were the same way the shell just crumbles up but the membrane will not tear open to let the egg out cannot get any I can cook. Are all quail egg membranes this tough? I kept the humidity up to about 70% all through the hatching period and around 50% through the incubation period. I have another load getting ready for lock down the first of next week and then I am going to be starting about 25 more then, so I would like to figure out my problem by then. Thanks for any help you can provide.