Trailhead cannot find a newly created Product Support Case

I'm working on Create a Case Escalation Rule in the Set Up Case Escalation and Entitlements module. 

See https://trailhead.salesforce.com/content/learn/projects/set-up-case-escalation-entitlements/create-case-escalation-rule?trailmix_creator_id=strailhead&trailmix_slug=prepare-for-your-salesforce-administrator-credential

Here are screenshots showing the error message and a screenshot of the newly created case that cannot be found.  I'm not sure what to do.  Does the info just need time to propagate across the system?