No von mises stress plot in results

My issue is that I need a von mises plot and instead I am getting a max stress.  This is for a tubular space frame. This is the only sim that I run that does not inlcude a Von Mises. It there a setting I am missing for a tube space frame that will do this? My model is adjusted the way it is suppoed to be. 

I tried to define a stress plot, however von mises is not an option. The only place it is an option is as a sensor, but it will not plot results.

Thanks for your time.

SolidworksSimulation