Can't get Arnold to render FumeFX in Maya 2017

[vtrockin]

I'm used to using Mental Ray with FumeFX - so it could be user error.

- I can see polygons in scene rendered. So it works in general.
- I see shaders install /mtoadeplay/2017/shaders/FumeFXShader.dll [6,789KB]

Basic Simple source. GPU preview looks fine. Black on render except placed polygons. Lights are link to FumeFX box.

I'm obviously missing something.

Thanks,
jason