The 3D cas background I created breaks inside the game

Lately I have been interested in creating a mirrored cas background, so I took the original file of a 3D cas background and edited it from scratch and assigned the textures, everything was going well, I managed to import it into s4stduio and it turned out perfect. but when I put it on The sims I only saw the 3D scene, everything else did not have the corresponding texture and was in a strange green, red and blue color, like a rainbow, I have done everything, I have repaired the game and deleted all the mods to see if something else was corrupting it but I realized that the problem is with the mesh but I can't detect what defect it has to react that way in the game, here I share the package file and some photos of the problem.
Package
Image

I don't know if it's useful but I'm saying it, I'm using star version 3.2.1.2


I hope you can help me