#Trailhead Challenges2.413 diskutieren mit

I'm having the same issue.  The package is installed and listed under installed packages.

I've also created a new playground and completed the steps again with the same error:

We can’t find the 'VideoFileViewer' package installed in your org.

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Here's the challenge link:

https://trailhead.salesforce.com/content/learn/modules/appexchange-solutions/install-appexchange-solution