No 'Distribution of Suitability' chart in Suitability Modeler

[Nicauldron]

Hi there 

I have just started to test out using the suitability modeler in ArcPro and have been following along with some online tutorial videos. 
My suitability modeler does not seem to load have the distribution chart on the left of the Transformation Pane:

Is there a way I can make this show up so that I can visualize the transformations I make?