[away3d] Canvas = The index 0 is out of range 0. ?

[Moley]

Started using a canvas (for my main objects) to appear above
Sprite3D's and got this when i rolled my mouse over the scene.

RangeError: Error #1125: The index 0 is out of range 0. at
away3dlite.core.render::Renderer/collectPointFace()[/Users/
moosecrumpet/Documents/Experiments/testAway3D/src/away3dlite/core/
render/Renderer.as:184]
        at away3dlite.core.render::BasicRenderer/getFaceUnderPoint()[/Users/
moosecrumpet/Documents/Experiments/testAway3D/src/away3dlite/core/
render/BasicRenderer.as:232]
        at away3dlite.containers::View3D/fireMouseEvent()[/Users/moosecrumpet/
Documents/Experiments/testAway3D/src/away3dlite/containers/View3D.as:
253]
        at away3dlite.containers::View3D/onRollOver()[/Users/moosecrumpet/
Documents/Experiments/testAway3D/src/away3dlite/containers/View3D.as:
218]