Thank you both for the information on the issue! As a heads up, I messaged the Creative Commons Technical Lead, Timid Robot, and they told me the Creative Commons API is going to go inactive sometime this year for good. Has anyone looked at pivoting to the openaire_license_types (see
https://github.com/DSpace/DSpace/blob/main/dspace/config/submission-forms.xml , around line 1517) and thought about what that might entail? I thiiiink those might fill out a slightly different metadata field on the backend than the CC integration does, but it's been awhile since I looked into it.
Have a great day,
Carolyn.