I have created a "Linked Data Source" and set the type as "Joined".
When I display this "Linked Data source", I am able to see the rows and columns but no data is displayed within it. However, if I am in a particular row, I'm able to view the row data on the "Data Source Details" section on the right hand pane. See Image below
Just that the data is not displayed in the web part,how to fix this??