Thank you for using the plugin, we’re delighted you like it!
Please verify;
1. Shortcode dataset=[id], and there are no other instances of dataset=?? in the shortcode
2. “Do not store entries submitted from this form” is not selected on the form’s setting.*
*This setting is okay if only emailing the PDF, it will not for links.
If the above is correct, please provide a copy of the shortcode, complete field map layout with the form, most recent dataset and the layout selected, and also a screenshot of the formidable entries page for that form.