Sharepoint scopes not working throught a GDAP application consent

Question

Hi, we have a problem when getting SharePoint settings through a GDAP relationship consent. Here's the flow we are using:

• Partner consent to an app with the scope https://api.partnercenter.microsoft.com/user_impersonation and offline_access
• Using the ApplicationConsents endpoint and the partner access token, we consent for one of its GDAP tenants (with a Global Admin Relationship) to the same app with the scope https://graph.microsoft.com/SharePointTenantSettings.Read.All
• We then get a token for the GDAP tenants using the refresh token of the partner and the SharePointTenantSettings.Read.All. The token has the scope in its claims.
• Using the GDAP tenant token we try to make a call to the graph endpoint /admin/sharepoint/settings and we get this error: 401 There has been an error authenticating the request.

The token seems to have the right scope and application role :

When trying to consent with the same app and same scope directly to the tenant (by using the auth code flow), we don't have the error when calling the /admin/sharepoint/settings graph endpoint.