Preview window does not show blendweights

Hi,

I am working on an editor which has a preview window
drawn as following (abridged)

Code (csharp):

1.  
2.  Editor gameObjectEditor = Editor.CreateEditor(MyGameObject);//cached
3. ...
4.             gameObjectEditor.OnPreviewGUI(position, null);
5.  

everything shows as expected until I alter the blendweights (on the skinned mesh renderer) of MyGameObject with a slider

I can see in scene that the blendweights are effecting the mesh, but not in the preview window.

Code (csharp):

1. [/LEFT]
2.             m_Renderers[0].SetBlendShapeWeight(0, EditorGUILayout.Slider("Damage",m_Renderers[0].GetBlendShapeWeight(0), 0, 100));
3.  

Does not work, but the following code does

Code (csharp):

1. m_Renderers[0].SetBlendShapeWeight(0, 100)

​

any thoughts what I am doing wrong here?

Thanks​

 

I'm assuming what is happening here is that the first time the preview window draws, it creates a copy of the gameobject that its displaying. If that is the case, how do I go about getting that copy of the game object?

 

I found out that if I do:

Code (csharp):

1. gameObjectEditor.ReloadPreviewInstances()

It instantiates a new previewed object with the new blendweights. However, it does not remove the old one. Is it possible to remove the gameobject from the preview scene?