Appfolder is named Graph

Question

Appfolder is named Graph for some users. According to the documentation the special appfolder should be named /Apps/{Application Name}

For users with the appfolder named Graph the create subscription request fails. The create subscription request for the resource /me/drive/special/approot fails with 503 and the message [Status Code: ServiceUnavailable; Reason: User content migrated. Cannot access disabled item.]