000034491 - After creating a record in RSA Archer, an unexpected error occurs attempting to open the content record.

<E2ETraceEvent xmlns="http://schemas.microsoft.com/2004/06/E2ETraceEvent">
    <ApplicationData>
        <TraceData>
            <DataItem>
                <TraceRecord Severity="Error" xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord">
                    <TraceIdentifier>Archer.Web</TraceIdentifier>
                    <LogReferenceId>120116-162347-1196</LogReferenceId>
                    <Description>One or more errors occurred.</Description>
                    <AppDomain>/LM/W3SVC/1/ROOT-1-131250600021548466</AppDomain>
                    <ContextData>                 
                        <id>462831</id>
                        <Module>ModuleId: 88, ModuleName: Contracts, ModuleStatus: ActiveInProduction, ModuleType: Application</Module>
                        <action>{"AT":6,"PFI":26976}</action>
                    </ContextData>
                    <Exception>
                        <ExceptionType>System.AggregateException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
                        <Message>One or more errors occurred.</Message>
                        <Source>mscorlib</Source>
                        <StackTrace>
  at System.Threading.Tasks.Task.WaitAll(Task[] tasks, Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at System.Threading.Tasks.Task.WaitAll(Task[] tasks, Int32 millisecondsTimeout)
   at ArcherTech.Web.Modules.GenericContent.GenericContentDataManager.GetRecordData(LevelRecordDataRequest levelRecordDataRequest)
   at ArcherTech.Web.Modules.GenericContent.Views.RecordPresenter.LoadRecordData()
   at ArcherTech.Web.Modules.GenericContent.Views.RecordPresenter.OnViewLoaded()
   at ArcherTech.Web.ArcherTechPage`2.OnLoad(EventArgs e)
   at Security2000.GenericContent.Record.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)</StackTrace>
                        <InnerException>
                            <ExceptionType>System.AggregateException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
                            <Message>One or more errors occurred.</Message>
                            <Source>mscorlib</Source>
                            <StackTrace>
  at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at System.Threading.Tasks.Task.Wait()
   at System.Threading.Tasks.Parallel.PartitionerForEachWorker[TSource,TLocal](Partitioner`1 source, ParallelOptions parallelOptions, Action`1 simpleBody, Action`2 bodyWithState, Action`3 bodyWithStateAndIndex, Func`4 bodyWithStateAndLocal, Func`5 bodyWithEverything, Func`1 localInit, Action`1 localFinally)
   at System.Threading.Tasks.Parallel.ForEachWorker[TSource,TLocal](IEnumerable`1 source, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Action`3 bodyWithStateAndIndex, Func`4 bodyWithStateAndLocal, Func`5 bodyWithEverything, Func`1 localInit, Action`1 localFinally)
   at System.Threading.Tasks.Parallel.ForEach[TSource](IEnumerable`1 source, ParallelOptions parallelOptions, Action`1 body)
   at ArcherTech.Web.Modules.GenericContent.DataManagers.ContentLoader.GetRelatedContents(SessionContext session, IList`1 referenceFieldMetaDatas, Nullable`1 parentContentId, IDictionary`2 fieldContents, Boolean isEditMode)
   at ArcherTech.Web.Modules.GenericContent.DataManagers.ContentLoader.GetRelatedContents(SessionContext session, LevelRecordDataContainer levelRecordDataContainer, Boolean isEditMode)
   at ArcherTech.Web.Modules.GenericContent.GenericContentDataManager.&lt;&gt;c__DisplayClass15.&lt;GetRecordData&gt;b__d()
   at ArcherTech.Provider.Threading.ThreadingFactory.&lt;&gt;c__DisplayClass2.&lt;WrapAction&gt;b__1()
   at System.Threading.Tasks.Task.Execute()</StackTrace>
                            <InnerException>
                                <ExceptionType>System.ArgumentNullException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
                                <Message>Value cannot be null. Parameter name: source</Message>
                                <Source>System.Core</Source>
                                <StackTrace>
   at System.Linq.Enumerable.Where[TSource](IEnumerable`1 source, Func`2 predicate)
   at ArcherTech.Kernel.Brokers.ContentBroker.GetLeveledContentTree(IDictionary`2 referenceContentIdMap, IList`1 levels)
   at ArcherTech.Kernel.Managers.ContentManager.GetLeveledContentTree(SessionContext sessionContext, IDictionary`2 referenceContentIdMap, IList`1 levels)
   at ArcherTech.Web.Modules.GenericContent.DataManagers.ContentLoader.&lt;&gt;c__DisplayClass19.&lt;GetRelatedContents&gt;b__14(KeyValuePair`2 relatedContentIdsForReference)
   at ArcherTech.Provider.Threading.ThreadingFactory.&lt;&gt;c__DisplayClass5`1.&lt;WrapAction&gt;b__4(T state)
   at System.Threading.Tasks.Parallel.&lt;&gt;c__DisplayClass32`2.&lt;PartitionerForEachWorker&gt;b__30()
   at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask)
   at System.Threading.Tasks.Task.&lt;&gt;c__DisplayClass11.&lt;ExecuteSelfReplicating&gt;b__10(Object param0)</StackTrace>
                            </InnerException>
                        </InnerException>
                    </Exception>
                </TraceRecord>
            </DataItem>
        </TraceData>
    </ApplicationData>
</E2ETraceEvent>

1. Navigate to Administration > Application Builder > Manage Applications
2. Access the application in question and go to the fields tab.
3. Filter on the Field Type: Cross-Reference.
4. One at a time, deactivate the Cross-Reference fields (if there are more than one) and test record access at each iteration until you are eventually able to access a record without the error being thrown. 
5. Once the problem Cross-Reference is found, remove and recreate the Cross-Reference field.