There appears to be something wrong in the handling of materials using diffuse colours in both FF dev edition (58.0b1) and CC (64.0.3261.0), though it seems to only affect windows (tested in windows 7 on multiple machines). http://www.babylonjs-playground.com/#LW79KW Moving across the scene, only one colour (the colour of the first mesh created that is in view) is used across all meshes. If this was only happening in one of the browsers I wouldn't be too concerned, but that it hap