Hi WFetzer,
Thank you for following up.
Our integration should reflect your Dropbox document lists as they are sorted in your Dropbox account.
We can help in investigating the root cause of the issue.
To do so, please create a case and have a Support Expert take a closer look at your setup.
https://support.docusign.com/en/contactSupport
If you are not able to open the case on the same page, you should scroll down to More Support Options and select "I can't reset my password or don't have an account." you will have the option of filling out the form or calling Support.
Please don't hesitate to let me know if you have any other questions or concerns and I will address them as soon as possible.