Stoops execution with Argument is NULL exception

> Please provide us with the following information:
> ---------------------------------------------------------------

### This issue is for a: (mark with an `x`)
```
- [x] bug report -> please search issues before submitting
- [ ] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)
```

### Minimal steps to reproduce
> run the script on a Win11 PC jopined to Azure AD

### Any log messages given by the failure
> =====================================================
> Test Device Registration Connectivity
> =====================================================
>
>Test-DeviceRegConnectivity log file has been created.
>
>Testing Internet Connectivity...
>Checking winHTTP proxy settings...
> Access Type : PROXY
>Proxy Server List : DirectAccess (kein Proxyserver).
>Proxy Bypass List :
>
>Checking winInet proxy settings...
> Proxy Enabled : No
>Proxy Server List :
>Proxy Bypass List :
> AutoConfigURL :
>
>Testing Device Registration Endpoints...
>Testing connection via winHTTP proxy...
>Start-ScheduledTask : Das Argument für den Parameter "InputObject" kann nicht überprüft werden. Das Argument ist NULL
>oder leer. Geben Sie ein Argument an, das nicht NULL oder leer ist, und führen Sie den Befehl erneut aus.
>In C:\Users\matzensv\Downloads\TestDeviceRegConnectivity-main
>(1)\TestDeviceRegConnectivity-main\Test-DeviceRegConnectivity.ps1:26 Zeichen:13
>+ $Task | Start-ScheduledTask -AsJob -ErrorAction Stop | Wait-Job | ...
>+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> + CategoryInfo : InvalidData: (:) [Start-ScheduledTask], ParameterBindingValidationException
> + FullyQualifiedErrorId : ParameterArgumentValidationError,Start-ScheduledTask

### Expected/desired behavior
> running smoothly without erropr messages

### OS and Version?
> Windows 11 Enterprise

### Versions
> what versions?

### Mention any other details that might be useful
> Register-ScheduledTask seems to simply return NULL in this case
> ---------------------------------------------------------------
> Thanks! We'll be in touch soon.

Commencez par reproduire le problème sur un PC Windows 11 Enterprise joint à Azure AD, puis examinez Test-DeviceRegConnectivity.ps1 à la ligne 26, où Start-ScheduledTask reçoit $Task. Lisez le traitement environnant de Register-ScheduledTask et comparez la valeur renvoyée aux exigences des cmdlets de tâches planifiées. Le travail est terminé lorsque le test de connectivité s’achève sans l’erreur d’argument NULL.

Rédigé par le modèle d'indexation à partir du texte de l'issue.