Windows Answer file is not activating the product key

Question

I'M trying to enable the product key of our Windows Server with an answer file. The answer file is created with Windows System Image Manager.Is finishing the Answer file without errors but when i check the product key I have to activate this manually.

Hereby the XML which is created by WSIM

 <?xml version="1.0" encoding="utf-8"?>
<unattend xmlns="urn:schemas-microsoft-com:unattend">
    <settings pass="oobeSystem">
        <component name="Microsoft-Windows-Shell-Setup" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            <AutoLogon>
                <Enabled>true</Enabled>
                <LogonCount>2</LogonCount>
                <Username>administrator</Username>
                <Domain>test</Domain>
            </AutoLogon>
            <UserAccounts>
                <AdministratorPassword>
                    <Value></Value>
                    <PlainText>false</PlainText>
                </AdministratorPassword>
            </UserAccounts>
        </component>
        <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-US</InputLocale>
            <SystemLocale>nl-NL</SystemLocale>
            <UILanguage>en-US</UILanguage>
            <UILanguageFallback>en-US</UILanguageFallback>
            <UserLocale>en-US</UserLocale>
        </component>
        <component name="Microsoft-Windows-Shell-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">
            <AutoLogon>
                <Password>
                    <Value></Value>
                    <PlainText>false</PlainText>
                </Password>
                <LogonCount>2</LogonCount>
                <Username>administrator</Username>
                <Enabled>true</Enabled>
                <Domain>test</Domain>
            </AutoLogon>
            <OOBE>
                <HideEULAPage>true</HideEULAPage>
            </OOBE>
            <UserAccounts>
                <AdministratorPassword>
                    <Value></Value>
                    <PlainText>false</PlainText>
                </AdministratorPassword>
            </UserAccounts>
            <TimeZone>W. Europe Standard Time</TimeZone>
        </component>
    </settings>
    <settings pass="generalize">
        <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>true</PersistAllDeviceInstalls>
        </component>
    </settings>
    <settings pass="windowsPE">
        <component name="Microsoft-Windows-Setup" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            <UserData>
                <ProductKey>
                    <WillShowUI>Never</WillShowUI>
                    <Key>XXXX-XXXX-XXX</Key>
                </ProductKey>
                <AcceptEula>true</AcceptEula>
            </UserData>
        </component>
        <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-US</UILanguage>
            </SetupUILanguage>
            <InputLocale>en-US</InputLocale>
            <UILanguage>en-US</UILanguage>
            <UILanguageFallback>en-US</UILanguageFallback>
            <UserLocale>en-US</UserLocale>
        </component>
    </settings>
    <settings pass="offlineServicing">
        <component name="Microsoft-Windows-Shell-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">
            <OfflineUserAccounts>
                <OfflineAdministratorPassword>
                    <Value></Value>
                    <PlainText>false</PlainText>
                </OfflineAdministratorPassword>
            </OfflineUserAccounts>
            <ComputerName>test</ComputerName>
        </component>
    </settings>
    <cpi:offlineImage cpi:source="wim:c:/users/temp/desktop/adk/install.wim#Windows Server 2016 SERVERSOLUTION" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
</unattend>

Use the following command in PowerShell to test the answer file

C:\Windows\System32\Sysprep\sysprep.exe /generalize /reboot /oobe /unattend:C:\Untitled.xml