We have a requirement to export to PDF the chart of a widget that is sourced by a data transform. We cannot source the widget directly by a report definition, because the chart needs to display combined data from multiple classes into one column. I am using a data page which references my report definition and a post processing data transform to manipulate the data as needed.

I'm using OOTB activity pxCreatePDF to export our widget to pdf, however the chart is coming as blank. How can this be adjusted in order for the chart to be exported properly? Is a product enhancement being considered for this? Our requirement is to export just the chart to either PDF or any image type such as png. Could we potentially export to png or another image type with the widget being sourced by a data page? 

I have attached a document showing how the widget looks in the UI vs how it looks when exported to pdf using the OOTB export to pdf activity.