Problem with mixed Languages in Windows 11

We deploy our Laptops with a Windows 11 24h2 Enterprise Image with German as the default language. We now want to offer English as a second option. We inject the language pack in the task sequence and set following settings ism /image:C: /Set-UILang:en-USDism /image:C: /Set-SysUILang:en-USDism /image:C: /Set-SysLocale:en-USDism /image:C: /Set-UserLocale:en-USand / or Set-WinUILanguageOverride -Language $Language Set-WinUserLanguageList $Language -Force Set-WinSystemLocale $Languagealso tried every RegKey in "HKLM:\System\CurrentControlSet\Control\Nls\Language"about 90% is in English but th