Godot 3.6.1
Maybe I didn’t understand something, but here’s what happened:
I created a derived “Box” scene, from which I inherited: “RedBox”
The “Box” scene has a MeshInstance, with a selected “CubeMesh” mesh with a material in which Albedo is white
The fact is that when I changed the color of the INHERITED RedBox scene to red, for some reason the DERIVED Box scene also turned red. I was expecting an override to happen
After a little research, I realized that this is fixed if you first remove the Mesh resource from the MeshInstance node from RedBox, and then add it again, setting the color red