The infertile egg went bad very soon into incubation (within the first week) and was taken out. Then during incubation, I lost 3 fertile eggs at different stages. (I have pictures if anyone is interested. I cut the eggs open). I was left with two developing eggs. Towards the end of incubation I cut the eggs (many people cut the eggs to see what they have or if they are worried the babies won't be able to make it out. I was just curious and it poses no threat to the babies, as long as you do it late in incubation. I believe I cut mine on day 55 out of a 60 day incubation) Inside one egg I found a very deformed baby. He was missing an eye and had spinal kinks. The other appeared to be formed normally.
Deformed baby

Normal appearing baby

A few days later one baby hatched out.

He had a very low hatch weight (35ish grams) but appeared healthy

Upon inspection, I found the deformed baby had died before hatching. He had wrapped his umbilicus around himself. I removed him from his egg and found he was so deformed he would not have survived anyway. The surviving hatchling turned out to be kinked as well but not nearly as bad. He was sexed male.

Over the next weeks, we tried everything in the book to get him to eat but eventually he grew too weak to live and passed away. We think his digestive system may not have formed normally as he was never able to swallow food and anything we gave him via tube came back up. His name was Rubiix and he will always have a place in my heart (as will his deceased clutch mates)
This season we are praying for a better breeding season. We are breeding 3 females.