Power KPI Matrix 3.1.1 - Export

Hi - I have a beautifully working Power KPI Matrix 3.1.1 scorecard.  Unfortunately one of my audiences has to see this in a report outside PowerBi.  Easy, I'll just export the scorecard to pdf or powerpoint.  Nope, when I do that what I see on the screen is not what comes out.  The background colour of individual metrics are changed and the format for comparison value also change (i.e. from # to %).  Am I doing something stupid?

Beautiful on screen

Not beautiful exported