Change Language of WES User Profile

What is the recommended method to change the language on WES clients for just the User profile on an english WES image?

I am aware of the LanguageControl_2.1.exe method, but would like to just change the language for the one User profile and not system wide.  The LanguageControl method is inefficient due to the need to maintain an Image/WES HW/Language.  There has to be a better way.  The language setting in WMS group configuration seems to no change the language at all.

I have been experimenting with PowerShell script to make a task for the User account to run at login, as WMS does not have the ability to install packages or run scripts as the User account. I then have a script to unregister this task.  Using this method I am able to mostly change the language however input method does not stick, it goes back to add an input method once script has been run. This is also the case if I add an input method manually while UWF is disabled, once UWF is enable same result of add an input method.

Is there something in WES image that nullifies the input method settings?

PowerShell Script To Change Language to Japanese for User Account

Set-WinSystemLocale-SystemLocale ja-JP

$action1 = New-ScheduledTaskAction -Execute powershell.exe -Argument "Set-Culture ja-JP"

$action2 = New-ScheduledTaskAction -Execute powershell.exe -Argument "Set-WinHomeLocation -GeoId 122"

$action3 = New-ScheduledTaskAction -Execute powershell.exe -Argument "Set-WinUILanguageOverride -Language ja-JP"

$action4 = New-ScheduledTaskAction -Execute powershell.exe -Argument "Set-WinDefaultInputMethodOverride -InputTip ""0411:{03B5835F-F03C-411B-9CE2-AA23E1171E36}{A76C93D9-5523-4E90-AAFA-4DB112F9AC76}"""

$trigger = New-ScheduledTaskTrigger -AtLogon -User User

Register-ScheduledTask -Action $action1,$action2,$action3,$action4 -Trigger $trigger -TaskName "ChangeLanguage-JP" -Description "Set language to Japanese" -User User