My first hatch - last week - was pretty good - 5 out of 7 eggs hatched. One had died a bit earlier than lock down but the other one obviously died during lock down. My second hatch - the last couple of days - 1 out of 5 hatched. Now, I did have a temp spike around day 15/16 -- but candled and saw movement in one of the eggs before putting in to lockdown. (Not the one that hatched). It's been over 30 hours since my one chick hatched so I decided to candle and examine the remaining eggs. The one that I opened up showed no movement before I opened it. It had pipped into the air cell but apparently died after that. Did not pip the shell. It had absorbed about half of the yolk. Perfectly formed baby. Could my humidity be too high during incubation and my babies are too big to hatch? Incubation humidity was 55-60% and lockdown was 65-72%. My temps were between 99-100, except for the temp spike. The membrane was not dried out - the chick was not "shrink wrapped". The one chick that did hatch came from a porous egg that I had thought wouldn't make it. Any ideas? Thanks in advance for any clues to this mystery.