Sysprep Unattend not changing locale, language etc Azure - Windows 2019

Hey!

Currently trying to change the locale, language, keyboard etc in a custom unattend. We can see sysprep finding out custom unattend, but then choosing to ignore it and using the panther unattend. Has anyone created windows azure images where they have changed the locale to any other language?

Here is my packer sysprep code:

{
                "type": "powershell",
                "inline": [
                    "Add-WindowsFeature Web-Server",
                    "while ((Get-Service RdAgent).Status -ne 'Running') { Start-Sleep -s 5 }",
                    "while ((Get-Service WindowsAzureGuestAgent).Status -ne 'Running') { Start-Sleep -s 5 }",
                    "& $env:SystemRoot\\System32\\Sysprep\\Sysprep.exe /oobe /generalize /quiet /quit /unattend:C:\\AzureData\\unattend.xml",
                    "while($true) { $imageState = Get-ItemProperty HKLM:\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Setup\\State | Select ImageState; if($imageState.ImageState -ne 'IMAGE_STATE_GENERALIZE_RESEAL_TO_OOBE') { Write-Output $imageState.ImageState; Start-Sleep -s 10  } else { break }}"
                ]
            } 

Here is my unattend file:

<?xml version="1.0" encoding="utf-8"?>
<unattend xmlns="urn:schemas-microsoft-com:unattend">
    <settings pass="windowsPE">
        <component name="Microsoft-Windows-International-Core-WinPE" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            <SetupUILanguage>
                <UILanguage>en-GB</UILanguage>
            </SetupUILanguage>
            <InputLocale>en-GB</InputLocale>
            <SystemLocale>en-GB</SystemLocale>
            <UILanguage>en-GB</UILanguage>
            <UILanguageFallback></UILanguageFallback>
            <UserLocale>en-GB</UserLocale>
        </component>
        <component name="Microsoft-Windows-Setup" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            <DiskConfiguration>
                <Disk wcm:action="add">
                    <CreatePartitions>
                        <CreatePartition wcm:action="add">
                            <Type>Primary</Type>
                            <Order>1</Order>
                            <Size>350</Size>
                        </CreatePartition>
                        <CreatePartition wcm:action="add">
                            <Order>2</Order>
                            <Type>Primary</Type>
                            <Extend>true</Extend>
                        </CreatePartition>
                    </CreatePartitions>
                    <ModifyPartitions>
                        <ModifyPartition wcm:action="add">
                            <Active>true</Active>
                            <Format>NTFS</Format>
                            <Label>boot</Label>
                            <Order>1</Order>
                            <PartitionID>1</PartitionID>
                        </ModifyPartition>
                        <ModifyPartition wcm:action="add">
                            <Format>NTFS</Format>
                            <Label>Windows 2019</Label>
                            <Letter>C</Letter>
                            <Order>2</Order>
                            <PartitionID>2</PartitionID>
                        </ModifyPartition>
                    </ModifyPartitions>
                    <DiskID>0</DiskID>
                    <WillWipeDisk>true</WillWipeDisk>
                </Disk>
            </DiskConfiguration>
            <ImageInstall>
                <OSImage>
                    <InstallFrom>
                        <MetaData wcm:action="add">
                            <Key>/IMAGE/NAME</Key>
                            <Value>Windows Server 2019 SERVERDATACENTER</Value>
                        </MetaData>
                    </InstallFrom>
                    <InstallTo>
                        <DiskID>0</DiskID>
                        <PartitionID>2</PartitionID>
                    </InstallTo>
                </OSImage>
            </ImageInstall>
            <UserData>
                <ProductKey>
                    <WillShowUI>OnError</WillShowUI>
                </ProductKey>
                <AcceptEula>true</AcceptEula>
                <FullName>Vagrant</FullName>
                <Organization>Bento by Chef Software, Inc.</Organization>
            </UserData>
        </component>
    </settings>
<settings pass="generalize">
    <component name="Microsoft-Windows-Security-SPP" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <SkipRearm>1</SkipRearm>
    </component>
    <component name="Microsoft-Windows-PnpSysprep" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <PersistAllDeviceInstalls>false</PersistAllDeviceInstalls>
    <DoNotCleanUpNonPresentDevices>false</DoNotCleanUpNonPresentDevices>
    </component>
</settings>
<settings pass="oobeSystem">
    <component name="Microsoft-Windows-International-Core" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
        <InputLocale>en-GB</InputLocale>
        <SystemLocale>en-GB</SystemLocale>
        <UILanguage>en-GB</UILanguage>
        <UserLocale>en-GB</UserLocale>
        <UILanguageFallback></UILanguageFallback>
    </component>
</unattend>

Cheers in advance!