Books - Dashboard Report, preview does not show any data. It is blank.

Hi All,

Does anybody have experience working with books which has dashboards as a pdf.

In books, I have Report and inside it has dashboard report as a type. Why we cannot add dashboards there. It is only showing components list. Also, I am adding component like data adapter, grid, embedded dashboard but it is not working. In preview section it is not showing any report or output.