Why GameObject (cube) keeps getting shader from another scene and vice - versa?

Hello to all. I came across a weird behavior in Unity Editor. I have a cube in one scene (scene1) with a material (mat1) and a Mobile/Vertex Colored shader. Another cube in a second scene (scene2) with same material has to be shaded with FX/Flare.

Problem is that, this shader keeps changing to FX/Flare, or Mobile/Vertex Colored without wanted to be like that. It is happening in an automatic way, as I cannot be having the same material with different shaders in different scenes?

Tried to make one cube in scene1 a prefab, but as I get from scene2 back to scene1, cube on scene1 gets the shader of scene2, and vice versa. Any clues on how to solve this issue, will be appreciated.

 

A material is basically a shader with some values (float, texture, color) to go along with it.

If you need another shader, you need to make another material.

 

Hello @Garth Smith. Thanks for the tip. Being a newbie, how to make a new material with shader? I choose material, then a shader and applied them on a gameObject? Then should I save or something in the editor?

 

Well I made a copy of mat1, attached the shader of scene1 and did the same for mat1 with the other shader in scene2. I was mistaken that Unity3d treats each scene as being an isolated "game environment", so I could have each object in each scene with the same materials.
It was wrong in my case. Now all works fine, case closed. Thanks @Garth Smith for pointing me to the right direction.