Hi michaelbroughton ,
In addition to what Pavel answered, just tell you it's not a bug. ATUM Export PRO exports all the records in the database's table (because no filter is applied by default), that means that those ones with the 'auto-draft' status will also be included in exports (and of course, 'draft' and 'trash' status are also included). That's how we did it because we don't want to limit any export options.
If you just want to export only current suppliers, just filter the status by the 'publish' status.
Hope this helps.
Best regards,
José Andrés