How can courses be prevented from appearing to user in self service?

Summary: We are upgrading from Skillsoft to Skillsoft Percipio catalog. The old Skillsoft catalog courses have been updated to have a publish end date in the past but they are still appearing in self service under ME → Learning → Search.

Content (please ensure you mask any confidential information): I thought that setting a course to have a Publish End date in the past would remove them from the self-service view for learners but many are still visible. How can this be remedied?

This is an example: Spark Next Level leadership

has no active learning assignments and the Publish end date is in the past