I installed the Dashboard Pal component in my Trailhead Playground Package ID: 04t3Y0000018TkG AppExchange link: https://appexchange.salesforce.com/appxListingDetail?listingId=a0N3A00000Ecs3hUAB still its showing not installed.

@Jyotsna Mattoo (Mercedes-Benz) , Can you please confirm if the issue still persists? ++TrailheadHelpFollowUp