BT2010 Installed Cum Update Packs for Adapters and getting run-time errors with WCF-SQL

Question

The process has been working fine for months.  Then we installed Cum Update packs to BT2010 (I'll get the exact C.U.'s from our admin guy) and last night got probably 20 errors similar to below.
   - Installed CU6 for BT2010
   - Installed CU3 for LOB (Adapters)
The SQL stored proc returns a mix of strings, integers, Guids, and dates; the BizTalk schema looks like matches perfectly. The stored proc runs fine in SSMS.
Got two errors for each, 1 in XLANG/s for the orchestration, and 1 for the Send port that calls the WCF-SQL adapter from the orchestration, and also 1 warning.
NOTE: This orchestration runs every 15 minutes 24x7.  It calls the Stored Proc to find out which extracts it needs to create.  Most all the extracts run at night.  So if I run the stored proc during the day, it normally returns an empty result
set.  Yet, the error below is happening every 15 minutes, even when the result set is empty.  How can it generate a data conversion error when there is no data to be converted? 
ORCHESTRATION/XLANG ERROR:
xlang/s engine event log entry: Uncaught exception (see the 'inner exception' below) has suspended an instance of service 'Common.Extract.Orchestrations.EFSRExtractHandler(2b35190e-5f11-e360-9ae8-daaf0372cbc3)'.
The service instance will remain suspended until administratively resumed or terminated.
If resumed the instance will continue from its last persisted state and may re-throw the same unexpected exception.
InstanceId: dc354922-73ef-46fc-ac3d-dbf793e5aaf8
Shape name:
ShapeId:
Exception thrown from: segment -1, progress -1
Inner exception: An error occurred while processing the message, refer to the details section for more information
Message ID: {066027B8-4750-4D63-A746-1390E9959E49}
Instance ID: {5A978538-5DD7-40D1-8826-D0486D129F84}
Error Description: System.InvalidCastException: Failed to convert parameter value from a String to a Guid. ---> System.InvalidCastException: Invalid cast from 'System.String' to 'System.Guid'.
   at System.Convert.DefaultToType(IConvertible value, Type targetType, IFormatProvider provider)
   at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
   at System.Data.SqlClient.SqlParameter.CoerceValue(Object value, MetaType destinationType, Boolean& coercedToDataFeed, Boolean& typeChanged, Boolean allowStreaming)
   --- End of inner exception stack trace ---
Server stack trace:
   at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.EndRequest(IAsyncResult result)
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 System.ServiceModel.Channels.IRequestChannel.EndRequest(IAsyncResult result)
   at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.RequestCallback(IAsyncResult result)
Exception type: XlangSoapException
Source: Microsoft.XLANGs.BizTalk.Engine
Target Site: Void VerifyTransport(Microsoft.XLANGs.Core.Envelope, Int32, Microsoft.XLANGs.Core.Context)
The following is a stack trace that identifies the location where the exception occured
   at Microsoft.BizTalk.XLANGs.BTXEngine.BTXPortBase.VerifyTransport(Envelope env, Int32 operationId, Context ctx)
   at Microsoft.XLANGs.Core.Subscription.Receive(Segment s, Context ctx, Envelope& env, Boolean topOnly)
   at Microsoft.XLANGs.Core.PortBase.GetMessageIdForSubscription(Subscription subscription, Segment currentSegment, Context cxt, Envelope& env, CachedObject location)
   at Common.Extract.Orchestrations.EFSRExtractHandler.segment1(StopConditions stopOn)
   at Microsoft.XLANGs.Core.SegmentScheduler.RunASegment(Segment s, StopConditions stopCond, Exception& exp)
SEND PORT ERROR: 
A message sent to adapter "WCF-Custom" on send port "Send_SQL_Orch_Call_GetAirportsForExtract" with URI "mssql://QADBAlias.datacenter.local//QTAviation?" is suspended.
 Error details: System.InvalidCastException: Failed to convert parameter value from a String to a Guid. ---> System.InvalidCastException: Invalid cast from 'System.String' to 'System.Guid'.
   at System.Convert.DefaultToType(IConvertible value, Type targetType, IFormatProvider provider)
   at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
   at System.Data.SqlClient.SqlParameter.CoerceValue(Object value, MetaType destinationType, Boolean& coercedToDataFeed, Boolean& typeChanged, Boolean allowStreaming)
   --- End of inner exception stack trace ---
Server stack trace:
   at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.EndRequest(IAsyncResult result)
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 System.ServiceModel.Channels.IRequestChannel.EndRequest(IAsyncResult result)
   at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.RequestCallback(IAsyncResult result)
 MessageId:  {C1FB3913-42EB-4957-9289-16D03B02674E}
 InstanceID: {46C9D190-902F-48CE-86CF-D8C3C5B8944D}

Answer 1

Hi,
About the error System.InvalidCastException: Failed to convert parameter value from a String to a Guid
, maybe the field on the database is varchar(string type).
And you can refer to the similar discussion:
http://stackoverflow.com/questions/12816641/failed-to-convert-parameter-value-from-string-to-guid
Hope it can help you.
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