When importing documents via DocuWare Import, Intelligent Indexing fails to process the documents. When started manually via "Repeat Intelligent Indexing", it processes as intended.
This behavior occurs because the user running the Import Job must be granted permission to access the Store Dialog used by the Document Tray to which the document is being sent to.

Once given access to the Dialog, Intelligent Indexing will work as intended.

KBA is applicable for On-premise and Cloud Organizations.