WF4 的项目，测试一切都好，发布之后隔几天，有些数据就会出现下面的BUG，搞了一天了也没查出来什么问题，各路大神帮帮忙！急！！！！！！！！！！！！！！！
Message: The execution of an InstancePersistenceCommand was interrupted because the instance key '31e755a1-1a94-ed40-3d83-2b7d756cac15' was not associated to an instance. This can occur because the instance or key has been cleaned up, or because the key is invalid. The key may be invalid if the message it was generated from was sent at the wrong time or contained incorrect correlation data..
Exception Type: System.ServiceModel.FaultException.
Source: mscorlib.
Module Name: C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll.
Stack Trace:
Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at IPP.Oversea.CN.CallCenterMgmt.ServiceImpl.WorkOrderWFService.IWorkOrderService.Assign(AssignRequest request)
at IPP.Oversea.CN.CallCenterMgmt.ServiceImpl.WorkOrderWFService.WorkOrderServiceClient.IPP.Oversea.CN.CallCenterMgmt.ServiceImpl.WorkOrderWFService.IWorkOrderService.Assign(AssignRequest request) in D:\Oversea\IPPOversea\03_Code\01_SourceCode\Oversea.Service\CallCenterMgmt\CallCenterMgmt.ServiceImpl\Service References\WorkOrderWFService\Reference.cs:line 990
at IPP.Oversea.CN.CallCenterMgmt.ServiceImpl.WorkOrderService.Assingn(WFOperateDataV31 msg) in D:\Oversea\IPPOversea\03_Code\01_SourceCode\Oversea.Service\CallCenterMgmt\CallCenterMgmt.ServiceImpl\WorkOrderService.cs:line 150.
