I've hatched ducks and chickens out of my incubator and have never had any problems. Recently I bought some coturnix quail eggs from a local farmer. Put them in my incubator right temp and humidity. I was told day 17 expect them to hatch. My incubator this round has malfunctioned wildly, it spiked once hitting 105, it's dropped for periods to 97. It seems it's ran more cool than warm. It's day 19 for the most part the incubator has righted itself and has been stable. I've candled the eggs and most are alive. I see movement, but they haven't pipped or made any progress? Have you ever had something like this happen? Normally I would of thought they would all be dead. Will the lower temps cause them to hatch late? What is late for coturnix quail?