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is #1 (85.37% Client With Any Failure) the same issue as below seen on Status Messaging Operational"?
Yes, it's the same issue, #1 is a summary, it contains all the scenario health failure, a client with one or more scenario health failure will be consider as "Client With Any Failure".
For the "Status Messaging Operational" issues, you may check this article for details:
https://learn.microsoft.com/en-us/troubleshoot/mem/configmgr/diagnostics/failed-devices-client-health-dashboard
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