Hi, I'm experimenting a strange issue when I create an instance with multimaterial on firefox. It looks like firefox only display the first sub material. Here is a little playground : http://www.babylonjs-playground.com/#TDLZT#3 It's ok on windows with IE & Chrome, and ok on macos with safari, chrome and firefox. Someone have an idea why firefox (windows) failed to display properly instances with multimat ? Thanks Sam