Problem creating a pdf from a report

I have two table view nodes of my data.

The first table view is a small invoice summary table.

The second table view is the invoice detail.

I have wrapped both of these views into a component and added an input (report) port. To this import port I have joined a Report Template Creator node to this and all works lovely up to this point.

The problem I have is, when I add an output port (report) to the same component, and then join this output port to a Report PDF Writer node then I get an error message “contains unconnected node”.

I can’t seem to get this to output my report to a pdf file. I can’t understand why this would occur. Can anyone help?