Adding Course Activity to a Specialization

Summary:

I've created 4 courses and now I want to add them to a specialization. When trying to add them, the courses aren't appearing in the search for "Select Learning Item" I should be able to find "Keynote" "Emotionally Supportive Relationships" "SproutAbout" and "Positive Interactions" as the 4 new course names, but nothing. Was something missed when we enabled activity sequencing? Is there something else going on?

Content (required):

Version (include the version you are using, if applicable):

23A but I am in a Dev environment testing activity sequencing before we push it to production.

Code Snippet (add any code snippets that support your topic, if applicable):