Invalid refresh token when executing Connect-Spotify

[luca-ramseyer]

When trying to connect to spotify I get the following Error:

Invoke-RestMethod : {"error":"invalid_grant","error_description":"Invalid refresh token"}
At C:\Program Files\WindowsPowerShell\Modules\PSSpotify\0.0.0.9\Modules\OAuth.psm1:83 char:30
+             $Authorization = Invoke-RestMethod -Uri $TokenEndpoint `
+                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-Rest
   Method], WebException
    + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMet
   hodCommand
Invoke-RestMethod : {
  "error": {
    "status": 400,
    "message": "Only valid bearer authentication supported"
  }
}
At C:\Program Files\WindowsPowerShell\Modules\PSSpotify\0.0.0.9\Modules\Profile.psm1:30 char:20
+         $Profile = Invoke-RestMethod -Headers $Session.Headers `
+                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-Rest
   Method], WebException
    + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMet
   hodCommand

The token must be valid because I just requested it from spotify with the following Powershell Script:

$uri = "https://accounts.spotify.com/api/token"
$headers = @{
    "Content-Type" = "application/x-www-form-urlencoded"
}
$body = @{
    grant_type = "client_credentials"
    client_id = "5115e00240e545779e7100d2af23009e"
    client_secret = "96bc20d578e74f9d98ab35b24ca6dff7"
}

$response = Invoke-RestMethod -Uri $uri -Method POST -Headers $headers -Body $body

After I got the token I tried to run these to connect to spotify:

Connect-Spotify -ClientIdSecret $Credentials -RefreshToken $response.access_token -KeepCredential

And

Connect-Spotify -ClientIdSecret $Credentials -RefreshToken $response -KeepCredential

Both didn't work.

For Context, my App settings on Spotify look like this:

And I get the Credentials with this command:

$Credentials = Get-Credential

Am I doing something wrong or is it a bug?