DSC Configuration data serialized to clixml and then rehydrated doesn't pass this test in PSDesiredStateConfiguration.psm1:1766

SerializationTest.ps1

$ConfigDataToSerialize = @{
    AllNodes = @(
        @{
            NodeName = 'TestNode1'
        }
        @{
            NodeName = 'TestNode2'
        }
    )
}

Write-output "Unserialized variable triggers validation error: $($ConfigDataToSerialize.AllNodes -isnot [array])"

Export-Clixml -InputObject $ConfigDataToSerialize -Path .\tempfile.xml
$DeserializedConfigData = Import-CliXml -Path .\tempfile.xml

Write-output "Deserialized variable triggers validation error: $($DeserializedConfigData.AllNodes -isnot [array])"

$ConfigDataToSerialize.AllNodes.GetType()
$DeserializedConfigData.AllNodes.GetType()