Morph ID: Killer Bee het. Clown x Killer Enchi Butter Clown -> white snakes?!

[snowby]

I made new photos in black light. Both of them look quite similar (it was hard to capture pattern of both snakes at the same time).

Could it be that the white one`s are: Super Pastel Enchi Spider Butter Clowns and the two that died in eggs were Super Pastel Spider Enchi Clowns?
I can`t see any signs of Butter in mother, Fire or Mojave in both of parents, how come are the hatchlings completely white?

Thanks for help.