I used to have great luck hatching eggs in my cabinet style incubator with automatic turner, but the last 4 times, I get very few chicks and have to help most of those. Humidity is kept at 50 during the first days and upped to 60 during the last few days. The temp is a steady 99.5 throughout the entire process. The incubator is 4 levels and I've got thermometers throughout each level and hygrometers too. Sometimes the chicks will start pipping and then dry up. Other times, they never even pip but when I check the eggs, they have fully formed but never hatched. I have even upped the humidity during hatching, as far as 85% just trying to figure out what's wrong. I've cleaned the incubator, even tried making an upper tray the hatching area in case the air flow wasn't right, but nothing. I'm so confused and at a total loss. They are all different breeds so it's not particular chickens. Any suggestions at all? I'd love to hatch more eggs but I'm tired of watching them die. Please help, if you can! Email me at 2 [email protected] if you have any suggestions. Thanks!