Hello,I want to have a mesh that has a material with a white texture and I want to instantiate multiple meshes in my scene but set different colors. Therefore I made a scene having a mesh and a script attached to it. In the script I made a function called "set_color" and by default I want to be white.However the program crashes when I try to run it. No compiler errors though. I could explain more, but I think the image below explains more that I could express in words. Please advise me how to do this.I am using Windows 10, 64 bits and please the version of Godot from the image below. The same thing happens in Godot 2.0.3 stable.[img width=501 height=152]https://s32.postimg.org/md3ngov5x/godot_version.png[/img][img width=750 height=266]https://s31.postimg.org/v1q6znt1n/crash_material.png[/img]