3 answers
HI Jeff,A similar issue was reported by other users in the past here https://developer.salesforce.com/forums/?id=906F0000000fybsIAA along with the troubleshooting steps which should help you. Also review https://community.adobe.com/t5/adobe-sign/sending-adobe-sign-agreements-from-custom-objects-in-salesforce/td-p/5885031If this information helps, please mark the answer as best.Thank you