I would say they were lost because of the humidity issue.My god how do you stand a 95 degree house?
Its easy to candle the eggs to see if they are viable.If you take a small flashlight and shine it on one side you should be able to see thru it and see veins(if they are viable).In my opinion brumation is a waste of time.I never cooled mine and instead used that time to fatten my girld up more.I let my breeders tell me when they wanted to stop eating.