Graph API user all attributes/properties are null

Hi!

We are using the People Picker component in our app and it is making graph API calls that look correct, but in the response the user properties are all null except the ID.

Example, searching for "ellen" causes the following request:

https://graph.microsoft.com/v1.0/groups/fc598cd2-2af2-4d85-b5fe-c4287965c102/members/microsoft.graph.user?$count=true&$top=6&$filter=startswith(displayName,%27ellen%27)%20or%20startswith(givenName,%27ellen%27)%20or%20startswith(surname,%27ellen%27)%20or%20startswith(mail,%27ellen%27)%20or%20startswith(userPrincipalName,%27ellen%27)

The response contains one user.  The object ID is correct but displayName (and all other properties) are null. 

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users",
    "@odata.count": 1,
    "value": [
        {
            "businessPhones": [],
            "displayName": null,
            "givenName": null,
            "jobTitle": null,
            "mail": null,
            "mobilePhone": null,
            "officeLocation": null,
            "preferredLanguage": null,
            "surname": null,
            "userPrincipalName": null,
            "id": "b4cbe90a-2b84-4804-90d4-aeb341e63adf"
        }
    ]
}

Here are all the permissions I have granted.  Thanks for your help!