This is my second time incubating eggs. The first time I entered 10 chicken eggs, in 21 days they all hatched. Good. So I give it another shot, I enter 40 chicken eggs. Wait 21 days did'nt come out. Wait 30 days and think let me open one up to see what happen. When I open it, it is a chick but it looks like it stop growing in 10 days it looks as if it stop forming or something. I don't know what happened everything was the same as the first time. Same temperature same everything! Any Ideas?