[away3d] TextField3D runtime text change

[wexcell]

Hi again :)

Have a problem with changing tex at runtime, don't know why I can't do
this simply myText3dObj.text = 'bla bla'
the 'myText3dObj' is currently on the scene, and when I'm trying to
change text I have an error:

TypeError: Error #1009: Cannot access a property or method of a null
object reference.
        at away3d.core.base::Geometry/removeFace()
        at away3d.core.base::Mesh/removeFace()
        at away3d.primitives::AbstractPrimitive/buildPrimitive()
        at away3d.primitives::TextField3D/buildPrimitive()
        at away3d.primitives::AbstractPrimitive/updatePrimitive()
        at away3d.primitives::AbstractPrimitive/get geometry()
        at away3d.core.traverse::ProjectionTraverser/apply()
        at away3d.core.base::Object3D/traverse()
        at away3d.containers::ObjectContainer3D/traverse()
        at away3d.containers::ObjectContainer3D/traverse()
        at away3d.containers::ObjectContainer3D/traverse()
        at away3d.containers::Scene3D/update()
        at away3d.containers::Scene3D/onUpdate()
        at flash.events::EventDispatcher/dispatchEventFunction()
        at flash.events::EventDispatcher/dispatchEvent()
        at away3d.containers::View3D/notifySceneUpdate()
        at away3d.containers::View3D/render()