Error Deleting subscription

Question

Note that the environment was upgraded from Beta to RTM.
Trying to delete a subscription for a user that contains a VM Cloud. User receives the error message:
One or more errors occurred while contacting the underlying resource providers. The operation may be partially completed.
The following errors are logged in EV:
Unexpected exception for operation 'Fanout', version '', client request Id '3f717b05-b8ae-4569-8409-067b29e9fd1c-2013-02-12 22:37:28Z', server request Id '9fe5b46efb9b426099aedb69a4f53ba2.2013-02-12T22:38:12.5241016Z', exception 'System.NullReferenceException:
Object reference not set to an instance of an object.
   at Microsoft.WindowsAzure.Server.Management.Core.RequestSenderExtensions.<>c__DisplayClass2b.<EnsureSuccessResponse>b__25(Task`1 t)
   at System.Threading.Tasks.Task.Execute()'.
Error:
HttpStatusCode: InternalServerError, ErrorCode: ErrorFromUnderlyingResourceProviders, ClientErrorMessage:One or more errors occurred while contacting the underlying resource providers. The operation may be partially completed.
 ---> 
Microsoft.WindowsAzure.Server.Management.Core.ManagementServiceException: Exception of type 'Microsoft.WindowsAzure.Server.Management.Core.ManagementServiceException' was thrown.
   at Microsoft.WindowsAzure.Server.Management.Core.Controllers.SubscriptionsControllerBase.<DeprovisionSubscriptionAsyncInternal>d__1e.MoveNext()
   at Microsoft.WindowsAzure.Management.TaskSequencer.<>c__DisplayClass1e`1.<RunSequenceAsync>b__1d(Task previousTask)
 <---
, operationName:, version:, accept language:, subscription Id:, client request Id:3f717b05-b8ae-4569-8409-067b29e9fd1c-2013-02-12 22:37:28Z, principal Id:[email protected], page request Id:, server request id:9fe5b46efb9b426099aedb69a4f53ba2.2013-02-12T22:38:12.5241016Z
Error:Could not perform RDFE subscription cleanup: 'd4c8c654-d6f1-4935-b32a-67e74d1c5fec'
HttpStatusCode: InternalServerError, ErrorCode: ErrorFromUnderlyingResourceProviders, Microsoft.WindowsAzure.Server.Management.ManagementClientException: One or more errors occurred while contacting the underlying resource providers. The operation may be partially
completed.
   at Microsoft.WindowsAzure.Server.Management.ManagementClientBase.<ThrowIfResponseNotSuccessful>d__27.MoveNext()
   at Microsoft.WindowsAzure.Management.TaskSequencer.<>c__DisplayClass1e`1.<RunSequenceAsync>b__1d(Task previousTask), operationName:Subscriptions.DeleteSubscription, version:, accept language:en-US, subscription Id:d4c8c654-d6f1-4935-b32a-67e74d1c5fec,
client request Id:3f717b05-b8ae-4569-8409-067b29e9fd1c-2013-02-12 22:37:28Z, principal Id:[email protected], page request Id:684e88e1-49d0-4539-b79d-39ea247d992f, server request id:
Error:ManagementClientException: One or more errors occurred while contacting the underlying resource providers. The operation may be partially completed.
<Exception>
  <Type>ManagementClientException</Type>
  <Message>One or more errors occurred while contacting the underlying resource providers. The operation may be partially completed.</Message>
  <StackTrace><![CDATA[
   at Microsoft.WindowsAzure.Server.Management.ManagementClientBase.<ThrowIfResponseNotSuccessful>d__27.MoveNext()
   at Microsoft.WindowsAzure.Management.TaskSequencer.<>c__DisplayClass1e`1.<RunSequenceAsync>b__1d(Task previousTask)
   at Microsoft.Azure.Portal.Controllers.TaskAsyncController.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass41.<BeginInvokeAsynchronousActionMethod>b__40(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass39.<>c__DisplayClass3b.<BeginInvokeActionMethodWithFilters>b__35()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass51.<InvokeActionMethodFilterAsynchronously>b__4b()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass51.<InvokeActionMethodFilterAsynchronously>b__4b()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass51.<InvokeActionMethodFilterAsynchronously>b__4b()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass51.<InvokeActionMethodFilterAsynchronously>b__4b()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__38(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass27.<>c__DisplayClass2c.<BeginInvokeAction>b__22()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass27.<BeginInvokeAction>b__24(IAsyncResult asyncResult)]]></StackTrace>
  <HttpContext>
    <User IsAuthenticated="true" Name="[email protected]" />
    <Request>
      <RawUrl>/Subscriptions/DeleteSubscription</RawUrl>
      <UserHostAddress>10.1.1.150</UserHostAddress>
      <Headers>
        <Header Key="Cache-Control" Value="no-cache" />
        <Header Key="Connection" Value="keep-alive" />
        <Header Key="Pragma" Value="no-cache" />
        <Header Key="Content-Length" Value="57" />
        <Header Key="Content-Type" Value="application/json; charset=UTF-8" />
        <Header Key="Accept" Value="application/json, text/javascript, */*; q=0.01" />
        <Header Key="Accept-Encoding" Value="gzip, deflate" />
        <Header Key="Accept-Language" Value="en-US,en;q=0.5" />
        <Header Key="Host" Value="panel.sitecloud.cytanium.com" />
        <Header Key="Referer" Value="https://panel.sitecloud.cytanium.com/" />
        <Header Key="User-Agent" Value="Mozilla/5.0 (Windows NT 6.2; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0" />
        <Header Key="x-ms-client-antiforgery-id" Value="geXGfFRdY2XxmFJlx23GcO0YW+AmOfwdiYv9jKiWQY2zshmYN9GPvBdiHM6Bri4osta6w3tkHrsrI7PjehSEUiQxarQY0It6if//E7ZCnClnIjtVsIzgrg0bGivMLwbNW6/nKA0nlHBbd+uW63Zw2QUX7LnMq03nSI04hMf7Sz+MYDbV"
/>
        <Header Key="x-ms-client-session-id" Value="684e88e1-49d0-4539-b79d-39ea247d992f" />
        <Header Key="x-ms-client-request-id" Value="3f717b05-b8ae-4569-8409-067b29e9fd1c-2013-02-12 22:37:28Z" />
        <Header Key="x-ms-subscription-ids" Value="d4c8c654-d6f1-4935-b32a-67e74d1c5fec" />
        <Header Key="X-Requested-With" Value="XMLHttpRequest" />
        <Cookies>
          <Cookie Name="sub" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (4 characters)" />
          <Cookie Name="__RequestVerificationToken_Tenant" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (156 characters)" />
          <Cookie Name=".ASPXAUTH" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (296 characters)" />
          <Cookie Name="__aux" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (296 characters)" />
          <Cookie Name=".ASPXAUTH" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (296 characters)" />
        </Cookies>
      </Headers>
    </Request>
  </HttpContext>
</Exception>, operationName:Subscriptions.DeleteSubscription, version:, accept language:en-US, subscription Id:d4c8c654-d6f1-4935-b32a-67e74d1c5fec, client request Id:3f717b05-b8ae-4569-8409-067b29e9fd1c-2013-02-12 22:37:28Z, principal Id:[email protected],
page request Id:684e88e1-49d0-4539-b79d-39ea247d992f, server request id:
Jeff Graves, ORCS Web, Inc.

Answer 1

Tracked it back to SPF throwing a 500 error on this HTTP POST:
https://spfserver01:8090/provider/subscriptions/d4c8c654-d6f1-4935-b32a-67e74d1c5fec/events
I enabled FRT and this is in the GENERAL_REQUEST_ENTITY:
Buffer="{"EventId":"1c272d90-d292-4a3a-8d66-d442a869a932","ListenerId":null,"EntityType":"Subscription","EntityState":0,"EntityId":{"Id":"d4c8c654-d6f1-4935-b32a-67e74d1c5fec","Created":"2013-02-12T23:20:49.4331634Z"},"OperationId":null,"IsAsync":false,"OfferCategory":null,"AccountAdminId":"[email protected]"}"
Jeff Graves, ORCS Web, Inc.