[away3d] from away3d 2.4 to 3.6

[martinillo]

Hi all

while trying to switch my project from 2.4 to 3.6 i am facing some
issues.
i would really be thankful if someone could give me a hint!

I am loading several .dae-Files (which is basically working). but when
running my project i receive the following message:
----------------------
ArgumentError: Error #2183: Skalierungswerte dürfen nicht null sein.
<<<= means scaling values must not be null
        at flash.geom::Matrix3D/prependScale()
        at away3d.core.base::Object3D/updateTransform()
        at away3d.core.base::Object3D/get sceneTransform()
        at away3d.core.traverse::ProjectionTraverser/match()
        at away3d.core.base::Object3D/traverse()
        at away3d.containers::ObjectContainer3D/traverse()
        at away3d.containers::ObjectContainer3D/traverse()
        at away3d.containers::ObjectContainer3D/traverse()
        at away3d.containers::View3D/render()
        at com.azweic::EFH/onEnterFrame()
----------------------
this way i am loading the files:

collada = new Collada();
collada.materials =({Material:farbe3});
loader1 = new Loader3D();
loader1.mouseEnabled = false;
loader1.loadGeometry("./models/EFH/Kellervoll.dae", collada);
loader1.addEventListener(Loader3DEvent.LOAD_SUCCESS, onSuccess);
View.scene.addChild(loader1);


private function onSuccess(e:Loader3DEvent):void{
                        kellerhalb = loader1.handle as ObjectContainer3D;
                        model.addChild(kellerhalb);
                        model.addChild(kellerhalb);
}

Any hints to find the error?
Greetings
Martin