Smartcard RequestPinChangeAsync throws exception

Im following the example here:
https://video2.skills-academy.com/en-us/windows/uwp/security/smart-cards

To initiate a smart card pin change or reset.

I can successfully enumerate readers/cards etc. and also issue certificates.
The following code executes successfully:

SmartCardProvisioning provisioning = await SmartCardProvisioning.FromSmartCardAsync(card);  
var id = await provisioning.GetIdAsync();  
var name = await provisioning.GetNameAsync();  
var status = await card.GetStatusAsync();  

But

bool result = await provisioning.RequestPinChangeAsync();  

Throws COM exception

 System.Runtime.InteropServices.COMException: 'Elementet blev ikke fundet. (0x80070490)'  

Translates to "Element not found"

Stack trace:

	StackTrace	"   at WinRT.ExceptionHelpers.<ThrowExceptionForHR>g__Throw|20_0(Int32 hr)\r\n   at WinRT.ExceptionHelpers.ThrowExceptionForHR(Int32 hr)\r\n   at ABI.Windows.Devices.SmartCards.ISmartCardProvisioningMethods.RequestPinChangeAsync(IObjectReference _obj)\r\n   at Windows.Devices.SmartCards.SmartCardProvisioning.RequestPinChangeAsync()\r\n   at Liga.LocalID.Providers.CardResetProvider.<ResetPin>d__4.MoveNext() in C:\\Users\\frederik\\source\\repos\\LigaID\\LigaLocalID\\Providers\\CardResetProvider.cs:line 64"	string  

I am building a packaged desktop app on dotnet framework 5, referencing Microsoft.WindowsAppSDK 1.0.0 and Microsoft.Windows.SDK.BuildTools 10.0.22000.196

I have requested the "Shared User Certificates" capability in the package.appxmanifest .

<Capabilities>  
    <rescap:Capability Name="runFullTrust" />  
    <uap:Capability Name="userAccountInformation"/>  
    <uap:Capability Name="sharedUserCertificates"/>  
  </Capabilities>  

and these are the dependencies:

  <Dependencies>  
    <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.17763.0" MaxVersionTested="10.0.19041.0" />  
    <TargetDeviceFamily Name="Windows.Desktop" MinVersion="10.0.17763.0" MaxVersionTested="10.0.19041.0" />  
  </Dependencies>  

Im developing in c#, Visual studio 2019 pro, on windows 10 build 19043.1415.

The smartcard is physical, GIDS/OpenSmartcard and works flawlessly with regular pkcs11 tools like pkcs11admin

So, short recap:
I am successfully enumerating smartcards and readers, issuing certificates to the cards, etc.
The problem is to get windows (the minidriver?) to display a pin change dialog.

Any help appreciated!

Kind regards
Frederik Borg