FIM Custom new attribute causing issue

Hi All,

I am going through a wierd issue in FIM. I created a new Sting attribute in FIM Portal and binded it to Group Object. I added this attribute in Filter Permissions and all Permission related MPR. So when a group is created from AD and flowing to FIM Portal we are setting this new attributes value to "ABC" by default in an Action Workflow. For some reason this attribute is causing issues and the value is not populated to this attribute. In Search Requests its a PostProcessingError. The error states

EXCEPTION DATA\r\n\r\nMESSAGE: System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
   at System.ThrowHelper.ThrowKeyNotFoundException()
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at Microsoft.ResourceManagement.Query.QueryParametersGenerator.WriteRequestedAttributes()
   at Microsoft.ResourceManagement.Query.QueryParametersGenerator.BuildParameterString()
   at Microsoft.ResourceManagement.Query.QueryProcessor.BuildSqlCommand(Query objectRepresentation, Boolean countResultsOnly)
   at Microsoft.ResourceManagement.Query.QueryProcessor.ExecuteQuery(Query query, Nullable`1 maximumTime, Boolean& endOfSequence, Boolean countResultsOnly, Int64& resultCount, Int64& executionTime)
   at Microsoft.ResourceManagement.Query.QueryProcessor.ExecuteQuery(Query query, Boolean& endOfSequence)
   at Microsoft.ResourceManagement.Data.DataAccess.GetObject(Guid objectId, CultureInfo locale, Guid requestor, String[] attributeNames, Boolean includeInlineRights)
   at Microsoft.ResourceManagement.Data.DataAccess.GetObject(Guid objectId, String[] attributeNames)
   at Microsoft.ResourceManagement.ActionProcessor.ActionDispatcher.Read(Guid objectId, CultureInfo locale, Nullable`1 requestor, Nullable`1 resourceTime, String[] requestedAttributes, Boolean includeRights)
   at Microsoft.ResourceManagement.ActionProcessor.ActionDispatcher.ProcessOutputRequest(RequestType request)
   at Microsoft.ResourceManagement.WebServices.RequestDispatcher.ExecuteGetAction(RequestType request)
   at Microsoft.ResourceManagement.WebServices.RequestDispatcher.ExecuteAction(RequestType request)
   at Microsoft.ResourceManagement.WebServices.RequestDispatcher.ExecuteAction[ResponseBodyType](RequestType request)
   at Microsoft.ResourceManagement.WebServices.RequestDispatcher.DispatchRequest[ResponseBodyType](RequestType request, Guid requestIdentifier, Object redispatchSingleInstanceKey, Boolean isRedispatch)
   at Microsoft.ResourceManagement.WebServices.RequestDispatcher.DispatchRequest[ResponseBodyType](RequestType request)
   at Microsoft.ResourceManagement.Workflow.Hosting.RequestWorkItemProcessor.DispatchRequest[TResponseType](RequestType request, Boolean applyAuthorizationPolicy)
   at Microsoft.ResourceManagement.Workflow.Hosting.RequestWorkItemProcessor.ProcessGetWorkItem(ReadRequestWorkItem readWorkItem)
   at Microsoft.ResourceManagement.Workflow.Hosting.RequestWorkItemProcessor.ProcessWorkItem(WorkItem workItem)\r\n\r\n**METHOD:Void ProcessRequestResponse(System.Object, System.Workflow.ComponentModel.QueueEventArgs)\r\n\r\n**METHOD:Boolean Run(System.Workflow.ComponentModel.IWorkflowCoreRuntime)\r\n\r\n**METHOD:Void Run()\r\n\r\n

Does anyone have any clue what I am missing here?

Any help would be appreciated.

Thanks!

Veena