Making things that should happen part way through happen right away

So part way through my level, the background changes. How do I keep the new background color when you start at a new checkpoint? (Past the color change.)

 

Does your color filler (the one that makes new color) "reset in checkpoint" option enabled?

 

The color filler does not have a reset in checkpoint.

 

Assuming you are activating this filler using on-off event, or changing its opacity using variable or curve, in each of these nodes you should have reset in checkpoint option.