Blender external renderer link

Ok, so now that I’ve tried out jme 3.1 I keep getting the “Unsupported operation exception”.

java.lang.UnsupportedOperationException: Material instances cannot be shared when hardware skinning is used. Ensure all models use unique material instances.
at com.jme3.animation.SkeletonControl.controlRenderHardware(SkeletonControl.java:258)
at com.jme3.animation.SkeletonControl.controlRender(SkeletonControl.java:299)
at com.jme3.scene.control.AbstractControl.render(AbstractControl.java:135)
at com.jme3.scene.Spatial.runControlRender(Spatial.java:756)
at com.jme3.renderer.RenderManager.renderSubScene(RenderManager.java:723)
at com.jme3.renderer.RenderManager.renderSubScene(RenderManager.java:733)
at com.jme3.renderer.RenderManager.renderSubScene(RenderManager.java:733)
at com.jme3.renderer.RenderManager.renderSubScene(RenderManager.java:733)
at com.jme3.renderer.RenderManager.renderScene(RenderManager.java:712)
at com.jme3.renderer.RenderManager.renderViewPort(RenderManager.java:1086)
at com.jme3.renderer.RenderManager.render(RenderManager.java:1145)
at com.jme3.app.SimpleApplication.update(SimpleApplication.java:253)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.runLoop(LwjglAbstractDisplay.java:151)
at com.jme3.system.lwjgl.LwjglDisplay.runLoop(LwjglDisplay.java:193)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:232)
at java.lang.Thread.run(Unknown Source)