Polymesh to Volume not working


I have been following a few Polymesh to Volume tutorials. As far as I can tell I am following each step but I am not getting any results. I apply a shader to my closed polymesh. I break the connect to surface material in the shading engine and add an aiStandardVolume shader to the Volume material channel. I then made adjustments to the shape volume attributes-step size = .01 and Volume padding = 1. I have played around with the density settings in the aiStandardVolume settings. The shape never changes. I have tried this on two different laptops.
I am running
Maya 2018
Arnold on a
Dell Precision 7540
Dell Precision 7540
Xeon E-2276M, 6 Core
64 GB ram
NVIDIA Quadro RTX 3000 w/6GB G DDR6