When the Bulk Export to CSV feature is completed, clicking the “Download” button directs to the following URL:
https://{mydomain}/?wpdmidl={reference}
which results in a message:
Invalid File Type (wpdm-export-{reference}.csv)!
The CSV export can easily be located in /wp-content/uploads/wpdm-cache/ but it would be great if this bug was eliminated and the “Download” button just downloaded the CSV.