I did everything the same with storing them as I normally did- putting the eggs in a box in a cool (not cold) place, and covering them with a towel. The oldest ones were four days old.
The only thing I can think of is that we had a power outage when they were at around the two week mark, but I...
Three weeks ago I put 41 eggs into my incubator, to hatch for friends and family since Tractor Supply can’t sell them in-store where I’m located because of the avian flu. I was busy the entire three weeks and didn’t candle them until lockdown when I realized that somehow there is only one chick...