I have a Maran egg that is in my incubator right now. We had lost track of the days before lockdown, but today when we checked it, the chick was cheeping inside the egg and we can feel it moving, but it hasn't pipped. We just had a chick die inside the egg, although we are not sure why. The hen that laid this egg lays fairly thick-shelled eggs. Is it possible for egg shells to be too thick?