Why does content that's removed from the Catalog still show on Feed, Daily, and Weekly Digests?

Issue:

Why does content that's removed from the Catalog still show on Feed, Daily, and Weekly Digests?

Cause:

Content that's deleted from the Catalog is undiscoverable but may still appear in Degreed in order to maintain completions and insights data. You may see deleted content in the following places:

• Plans and Pathways that it has been added to,
• Weekly digest emails and Daily digest emails,
• Feeds, such as the Home page feed, including the sections Continue Learning, Recently Viewed, Content, Focus Skill, Recent Activity, Trending Within, New Content, Additional Skills, and Skill To Explore

Additional Note: 

For more information about deleting both hosted and non-hosted content, see About Internal Catalog Content Deletions and Delete a Content Item from the Internal Catalog.