Use last PowerState instance in Statuses for power status (#15941)

* Use last PowerState instance in Statuses

* Update changelog

Author: DSakura207

src/Compute/Compute/ChangeLog.md

@@ -21,6 +21,7 @@
 -->
 ## Upcoming Release
 * Update Compute .NET SDK package reference to version 49.1.0
+* Fixed a bug in `Get-AzVM` that caused incorrect power status output.
 
 ## Version 4.17.0
 * Added new parameters `-LinuxConfigurationPatchMode`, `-WindowsConfigurationPatchMode`, and `-LinuxConfigurationProvisionVMAgent` to `Set-AzVmssOSProfile`

src/Compute/Compute/VirtualMachine/Operation/GetAzureVMCommand.cs

@@ -14,6 +14,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Management.Automation;
 using System.Threading;
 using System.Threading.Tasks;
@@ -226,7 +227,8 @@ private List<PSVirtualMachineListStatus> GetPowerstate(
                             var psstate = state.ToPSVirtualMachineInstanceView(psItem.ResourceGroupName, psItem.Name);
                             if (psstate != null && psstate.Statuses != null && psstate.Statuses.Count > 1)
                             {
-                                psItem.PowerState = psstate.Statuses[1].DisplayStatus;
+                                var powerStatus = psstate.Statuses.LastOrDefault(s => s.Code.StartsWith("PowerState"));
+                                psItem.PowerState = powerStatus != null ? powerStatus.DisplayStatus : InfoNotAvailable;
                             }
                             else
                             {