Are there any other morphs of ball pythons where females don't lay viable eggs?

That question right there had me thinking, What if a Desert isn't what we think it is.
I know its a long shot but what if its a hybrid.
Lets say a Jag carpet x Ball and after a few gens of breeding male carpalls back to female Ball pythons you get a snake that looks like this but has a lethal gene when you finally use a female showing the mutation.
The desert is almost what I would picture a jag x ball mix a few generations down the line bred just to ball python females.

Was just something I have been thinking about.
Any thoughts on it?