Orangebelly Color Change

[MarkS]

MarkS you are incorrect about what you are saying......

What you are referring to is when over night the snake will lose all color. People wrongly refer to it as IMG. We have a snake that this has happened to. This issue is completely different. It also looks to be genetic. Otherwise how else did it happen to 2 different clutches in the same tree?
This looks like it may actually be an IMG snake.

You're likely right, but I would be hesitant to call ANYTHING genetic until it's been proven beyond a reasonable doubt. There are plenty of people in this hobby who have been left with egg on their faces by declaring something to be obviously genetic when it later proved not to be so.