I haven't opened the egg yet. Its only a day late at this point, so I'm giving it a little extra time to allow for temperature differences in the incubator. If it still hasn't pipped by tomorrow afternoon I'll open it.
Stupid question, but how do you tell if it broke the inner membrane? I've not completed may disection of dead eggs so I'm a little green on the matter.
My other question is that if other eggs are hatching that were set at the same time, why wouldn't a lack of or surplus of humidity killed them also? My humidity in this large cabinet incubator runs in the 40% to 50% area at all times. Try as I might, I CAN NOT get it over 55% I've even plugged the vent holes to try and keep it in. And the worst part about it, is that it is a self fed waterer hooked up to a 5 gallon bucket, so I dont even have to OPEN the door except to move eggs to the hatching tray...