Upgrade to the latest version of Azure Monitor for Virtual Machines
Published date: February 18, 2020
The Azure Monitor for Virtual Machines performance views have now switched to use the data stored in the InsightsMetrics table. If you haven't already done so, upgrade to the latest VMInsights solution on your workspace so your charts will display correctly. To upgrade to the latest VMInsights solution, sign in to the Get Started page in the Azure portal and follow the prompts to add the new solution to your workspaces.