Autoscaling virtual Desktop incompatible with ARM / BICEP Deployment

I did not figure out any solution. I also checked if I could check in den bicep file if the extension already exists, but this does not seem to be possible.

The deployment fails every single time when one of the machines have been shut down by the autoscaler as it tries to deploy the extensions every single time.

This is my current configuration:

param registrationToken string
param hostpoolName string
param vmName string
param location string
param machineImage string
param machineImageGalleryRG string
param vmAdminUser string
param vmAdminPassword string
param subnetId string


var storageSuffix = environment().suffixes.storage
var modulesDSCUrl = 'https://wvdportalstorageblob.blob.${storageSuffix}/galleryartifacts/Configuration_8-3-2021.zip'

resource networkInterfaces_resource 'Microsoft.Network/networkInterfaces@2020-11-01' = {
  name: '${vmName}-nic'
  location: location
  properties: {
    ipConfigurations: [
      {
        name: 'ipconfig'
        properties: {
          privateIPAllocationMethod: 'Dynamic'
          subnet: {
            id: subnetId
          }
          primary: true
          privateIPAddressVersion: 'IPv4'
        }
      }
    ]
    enableAcceleratedNetworking: false
    enableIPForwarding: false
  }
}

resource MachineImage 'Microsoft.Compute/galleries/images/versions@2021-07-01' existing = {
  name: machineImage
  scope: resourceGroup(machineImageGalleryRG)
}

resource virtualMachines_resource 'Microsoft.Compute/virtualMachines@2021-07-01' = {
  name: vmName
  location: location
  identity: {
    type: 'SystemAssigned'
  }
  properties: {
    hardwareProfile: {
      vmSize: 'Standard_B4ms'
    }
    storageProfile: {
      imageReference: {
        id: MachineImage.id
      }
      osDisk: {
        createOption: 'FromImage'
        managedDisk: {
          storageAccountType: 'StandardSSD_LRS'
        }
        diskSizeGB: 256
      }
      dataDisks: []
    }
    osProfile: {
      computerName: vmName
      adminUsername: vmAdminUser
      adminPassword: vmAdminPassword
      windowsConfiguration: {
        provisionVMAgent: true
        enableAutomaticUpdates: true
        patchSettings: {
          patchMode: 'AutomaticByOS'
          assessmentMode: 'ImageDefault'
        }
      }
      secrets: []
      allowExtensionOperations: true
    }
    networkProfile: {
      networkInterfaces: [
        {
          id: networkInterfaces_resource.id
        }
      ]
    }
    diagnosticsProfile: {
      bootDiagnostics: {
        enabled: true
      }
    }
    licenseType: 'Windows_Client'
  }
}

var aadLoginExtensionName = 'AADLoginForWindows'

resource virtualMachineName_aadLoginExtensionName 'Microsoft.Compute/virtualMachines/extensions@2021-04-01' = {
  parent: virtualMachines_resource
  name: aadLoginExtensionName
  location: location
  properties: {
    publisher: 'Microsoft.Azure.ActiveDirectory'
    type: aadLoginExtensionName
    typeHandlerVersion: '1.0'
    autoUpgradeMinorVersion: true
    settings: {
      mdmId: '0000000a-0000-0000-c000-000000000000'
    }
  }
}

resource virtualMachines_name_Microsoft_PowerShell_DSC 'Microsoft.Compute/virtualMachines/extensions@2021-03-01' = {
  parent: virtualMachines_resource
  name: 'Microsoft.PowerShell.DSC'
  location: location
  properties: {
    autoUpgradeMinorVersion: true
    publisher: 'Microsoft.Powershell'
    type: 'DSC'
    typeHandlerVersion: '2.80'
    settings: {
      modulesUrl: modulesDSCUrl
      configurationFunction: 'Configuration.ps1\\AddSessionHost'
      properties: {
        hostPoolName: hostpoolName
        registrationInfoToken: registrationToken
        aadJoin: false
      }
    }
    protectedSettings: {}
  }
}