When I set 'Mesh.defaultStyle = MultiTextureStyle;',some object will be rendered as a white rec.
You mean this extension, right?
Unfortunately, I ran into problems like the one you're describing, too, and could never quite find out the reason. Does this happen in both AIR simulator and real devices (iOS/Android)?
@Daniel ,yes it is.
One program for mobile works fine,another one for windows will get this error.That program is a Map Editor for our game,on the begin it show UI,and when I load a new textureAtlas in ,UI will be rendered white.