What could be the problem whenjust about all the eggs in the incubator have a blood ring? It's day 13 now and I have removed all the eggs, 95% have blooding rings and 5% infertile( I understand this issue). Is it the eggs? The incubator not keeping the correct humidity, set to 55% and temp set to 37.5 degrees Celsius. I think 1 possibly developed for a few days then died. Please help!