I candled to day as we have all of about 1 week left and well, I'm concerned the eggs are not drying down as well as athey could / should/ oughta / coulda !! THe air cell is surprizingly small for 3 weeks and mostly under 22%RH Trying to get them to dry more . . . . if any one has suggestions . . . have thought about put a fan on them directly but then common sense prevails. lol
Mine are having issues like this. Some are drying to fast and others not fast enough. It's really irritating... But you could try putting rice or popcorn in your incubator to dry it out more. Or maybe try missing like you would with duck and goose eggs.