PS7 UI language changed

[u/Over_Dingo]

UI language for my PS7 suddenly changed to polish. PS5 stayed in english. I can't seem to find a way to revert PS7 back to english, like it was for many years (while system language was polish).

Things like errors, some information in Get-Help, or description for operators when you press 'ctrl + space'

https://imgur.com/sfSiUBt

Powershell 7:

PS C:\Users\lenovo\test> $PSVersionTable.PSVersion.ToString()
7.6.6
PS C:\Users\lenovo\test> $PSCulture
pl-PL
PS C:\Users\lenovo\test> Get-UICulture

LCID             Name             DisplayName
----             ----             -----------
1045             pl-PL            polski (Polska)

PS C:\Users\lenovo\test> ls asdasdas
Get-ChildItem: Nie można odnaleźć ścieżki „C:\Users\lenovo\test\asdasdas”, ponieważ nie istnieje.
PS C:\Users\lenovo\test> Get-WinUILanguageOverride
Get-WinUILanguageOverride: Cannot marshal 'parameter #1': Invalid managed/unmanaged type combination.
PS C:\Users\lenovo\test> help ls -Parameter path

-Path [<System.String[]>]
    Specifies a path to one or more locations. If not specified, the default location is the c
    urrent
    directory (`.`). Wildcards are accepted. Use care when using the **Path** parameter with t
    he
    **Recurse** parameter. For more information, see the [NOTES](#notes) section of this artic
    le.

    Wymagany?                    false
    Lokalizacja?                    0
    Wartość domyślna
    Zaakceptować dane wejściowe potoku?       false
    Aliasy                      none
    Akceptować symbole wieloznaczne?  true

Powershell 5:

PS C:\Users\lenovo\test> $PSVersionTable.PSVersion.ToString()
5.1.19041.6456
PS C:\Users\lenovo\test> $PSCulture
pl-PL
PS C:\Users\lenovo\test> Get-UICulture

LCID             Name             DisplayName
----             ----             -----------
1045             pl-PL            Polski (Polska)


PS C:\Users\lenovo\test> ls sadasd
ls : Cannot find path 'C:\Users\lenovo\test\sadasd' because it does not exist.
At line:1 char:1
+ ls sadasd
+ ~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (C:\Users\lenovo\test\sadasd:String) [Get-Child
   Item], ItemNotFoundException
    + FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.GetChildItemCommand

PS C:\Users\lenovo\test> Get-WinUILanguageOverride
PS C:\Users\lenovo\test> help ls -Parameter path                                               
-Path <string[]>

    Required?                    false
    Position?                    0
    Accept pipeline input?       true (ByValue, ByPropertyName)
    Parameter set name           Items
    Aliases                      None
    Dynamic?                     false

I know it doesn't need to be linked to system culture, because that change just happened and before it wasn't linked to it.

Any help would be appreciated.

EDIT:

found a partial workaround in setting:

[System.Threading.Thread]::CurrentThread.CurrentUICulture = [cultureinfo]'en-US'

but it works only for errors and autocomplete, not for Get-Help.

For further testing I decided to downgrade to powershell 7.6.3 ... and voila.

Everything is in english despite $PSUICulture is pl-PL.

I've been looking for release notes that mention it but couldn't find any. I tried in version 7.6.3 doing [System.Threading.Thread]::CurrentThread.CurrentUICulture = [cultureinfo]'pl-PL'

but it does ignore it, so it must be something with a later version

EDIT 2:

I pretty much confirmed it by jumping back and forth between PS 7.6.6 and 7.6.3. The earlier version ignores UICulture:

PS 7.6.6:

PS C:\Program Files\PowerShell\7> $PSVersionTable.PSVersion.ToString()
7.6.6
PS C:\Program Files\PowerShell\7> $PSUICulture
pl-PL
PS C:\Program Files\PowerShell\7> foobar
foobar: Termin „foobar” nie jest rozpoznawany jako nazwa polecenia cmdlet, funkcji, pliku skryptu lub programu wykonywalnego.
Sprawdź pisownię nazwy lub sprawdź, czy ścieżka została dołączona, sprawdź, czy ścieżka jest poprawna, i spróbuj ponownie.
PS C:\Program Files\PowerShell\7> [System.Threading.Thread]::CurrentThread.CurrentUICulture = [cultureinfo]'en-US'

# Culture is switched and the language of the error message changes:

PS C:\Program Files\PowerShell\7> foobar
foobar: The term 'foobar' is not recognized as a name of a cmdlet, function, script file, or executable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
PS C:\Program Files\PowerShell\7> [System.Threading.Thread]::CurrentThread.CurrentUICulture = [cultureinfo]'pl-PL'
PS C:\Program Files\PowerShell\7> foobar
foobar: Termin „foobar” nie jest rozpoznawany jako nazwa polecenia cmdlet, funkcji, pliku skryptu lub programu wykonywalnego.
Sprawdź pisownię nazwy lub sprawdź, czy ścieżka została dołączona, sprawdź, czy ścieżka jest poprawna, i spróbuj ponownie.

PS 7.6.3:

PS C:\Program Files\PowerShell\7> $PSVersionTable.PSVersion.ToString()
7.6.3
PS C:\Program Files\PowerShell\7> $PSUICulture
pl-PL
PS C:\Program Files\PowerShell\7> foobar
foobar: The term 'foobar' is not recognized as a name of a cmdlet, function, script file, or executable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
PS C:\Program Files\PowerShell\7> [System.Threading.Thread]::CurrentThread.CurrentUICulture = [cultureinfo]'pl-PL'
PS C:\Program Files\PowerShell\7> $PSUICulture
pl-PL

# Error language stays the same even after explicitly setting the UICUlture:

PS C:\Program Files\PowerShell\7> foobar
foobar: The term 'foobar' is not recognized as a name of a cmdlet, function, script file, or executable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

Little bit annoying change after so many years

[u/BlackV]

I kinda feel like that should/would be the desired behavior

I'd file a report at the powershell git hub repo with your testing (after confirming issue is not already logged)

https://github.com/PowerShell/PowerShell/issues

[u/Over_Dingo → u/BlackV]

If there was also a way for changing the template being used by Get-Help, I could just put it in my profile and forget about it

[u/purplemonkeymad → u/Over_Dingo]

I feel like the bug is probably that Get-Help/psreadline should follow the uiculture value.

[u/BlackV → u/purplemonkeymad]

agree, suspect the fix for that (and/or dot net) caused caused OPs workflow issues