- You're working with CONTENTdm IIIF item manifest files, but not all of the fields are coming out in results.
Hidden or blank fields will not appear in IIIF manifest files. If the field you are missing is neither of those, contact OCLC Support with your OCLC Symbol, CONTENTdm site number, collection name and some sample items. We can run a rebuild on the collection to resolve this.
There is more on CONTENTdm IIIF item manifest files.