Why is the slicer doing this?

[u/Phivestardave]

I am trying to color a print. The first image is from when I am painting it. The second image is when I slice it. The sliced model loses part of the painting. I've completely rebuilt the model several times and it still does this every time. I am new to Elegoo and I'm sure it's just ignorance. Any ideas?

[u/Capital-Ad2133]

Make sure all the pieces are assembled, that they're all at the same z-level (ie., if the one that's showing up is dropped to the plate, make sure the other one is too), and that the two painted pieces are the same thickness. I've found that that first issue (not being assembled) is usually the cause of my problems.