May I suggest you try again?? With a little trial and error you will discover what works for you. I remember the feeling of angst when only half my eggs hatched the first time. I do better now as I have a better hatch rate.
I keep info like humidity and temps; turn 3-5 times a day. Mine spiked to 104 the other day-- I will go with it until the end and see if any lasting damage results.
How I manage during the winter months is different than the summer months. Many factors go into a successful hatch. My winters are very dry-- running 16% humidity but the eggs are big and the temps are running on the warm side so I suspect these might hatch early and so need the lesser water content by day 19-20. In the summer the humidity gets to 35% in the incubator. ( I don't worry too much about calibrating the thingy-- the eggs tell me if the humidity is right; I dry hatch and rarely add a bit of water in the winter months; and never in the summer months. )
Humidity-- I track this but more importantly I look at the air cell size. It really needs to be very large by day 18 lockdown. IF not, I don't add water until it is large enough. OTherwise the chicks is too moist to hatch correctly ( filled with water)
So hope you will try again, take what have learned, or suspect in this trial run, and try again. You might not know right now what went wrong but in a few more hatches I bet you will know.
