well i dont know if this helps but when you find the eggs as they lay mark the top with a nontoxic marker and never rotate them and incubate them with that side up. it is not good to have the embryos doing gymnastics. if your really having problems with a consistant egg layer you might have to do some science lab with a exacto knife at diffrent times (weeks, months right off the get go}. it sounds aweful but i have answered many of my egg laying mysterys that way. its for the best because instead of having nothing you will be collecting information toward having a sucessful hatch.