I am incubating 56 quail eggs at 99.5%. 1 was born on day 18. 4 were born on day 19. 1 was born on day 20. One more was born today but died. Today is day 23. I opened up the incubator to call it quits. I gently rolled all the eggs around. One is now cut most the way around. It and a few other eggs started shaking after I rolled them. Anyone had a crazy experience like this? Brand new incubator. Humidity levels were fine. Nothing weird at all during incubation. Temp stayed at 37.5° C, and had brief falls to 37.3°. These are Jumbo browns. Should they take longer than regular size, or what am I missing?