It seems I have lost access to ALL ResourceGroups. I have no idea how this has happened. I can see that my logged in account is running under the Owner role as it is the Service Administrator Account. Therefore I thought that role should have access to ALL resources within the subscription?
When I try to access any VM or resource group I receive a message displaying "You do not have access." If I try to run powershell commands under the Azure Resource Manager Mode I receive 'Forbidden'.
How can this be? What can I do to return access?