How do I fix this issue with the color and materials when I import my 3D models to Godot

....Just a night as a security guard

Five Nights at Sheldon's fun center clock #fnaf

You Survived The First Day

Testing some lighting effects

#FNAF #Fangame

I uploaded a playable build of my fan game Five Nights at Sheldon's Fun Center, feel free to test it

https://gamejolt.com/games/Sheldonthelowpolyturtle/755819

Sheldon the turtle awakens

Making of my fan game Five Nights at Sheldon's Fun Center LOG 1 (skip to 0:18)

Making of my fan game Five Nights at Sheldon's Fun Center LOG 1 (skip to 0:18)

A New animatronic