I have several facebook and voucher sessions on my Guest Portal. When I choose to export the list in cnMaestro, either for pdf or csv, the results are simply a heading page with no data.
Can you let us know which browser you were trying? and if your using cnMaestro Beta version by any chance. I can cross check things from your account if you can invite me into your cnMaestro account. I will send you more details in a separate message.
I have tried safari, chrome, and firefox. All with the same results. I get the heading and page layout but none of the data.
And again... thanks