Gin...I'm not laughing at you, I'm laughing NEAR you when I say this, but LOL...you're on your way to being a pro herp breeder!
We ALL have perfect eggs that turn from sugar to shi...er, doodee at some point or another, for a multitude of reasons. Yes, it sucks to high heaven, but you are NOT alone.
If it makes you feel any better, I had one of my favorite females lay ONE good egg yesterday...all the rest were crap. Everything was dialed in perfectly (or so I thought), but she schooled me otherwise.
This is all part of breeding snakes, hon. "Some will, some won't, so what." I know it's probably small consolation at the moment, but this sort of stuff really is just par for the course at some point or another.
Hang in there!!!!!!!!
K~