My workflow is set to atomically start when a new item is entered; however, I would like to have my nintex workflow to only automatically start when creating a new document set - and NOT after each new document is uploaded into the document set.

Is there an out-of-the-box workaround on this? In addition, I normally receive a workflow-error when documents are uploaded within the document set. There is not enough information re: document sets on Nintex. Would appreciate any assistance on this or even if you could refer me to some earlier posts or youtube videos, etc.