Hi! Please help me (yes, again )! http://www.babylonjs-playground.com/#1A8B4B 1. have StandardMaterial, binded on mesh; 2. delete this material: material.dispose() 3. scene.materials not contains this material more, its OK, BUT .... 4. If we get "material" property from mesh we get link on deleted material. How it works? Example: First we deleted anything materials (we not know how meshes binded on disposed material). Second we need know - deleted material on this mesh or not, but how, if we get "material" we get normal StandardMaterial. Check every time contains scene.materials this material or not is horrable, but how make this correct?