Error al autorizar flujo - Collection was modified (Evolution 1.11.0.3)

SQL SERVER. Se tuvo algunos inconvenientes al autorizar flujos de forma simultánea de la entidad movimientos, sucedió en algunos flujos:

2018-01-18 18:19:22,602 [54] INFO  Aseinfo.VH4.WorkflowServices.Services.AuthorizationWorkflowService - TerminarInstancia: f75f5e00-1422-4d62-ae0e-b3c3bfed4c77 
Exception:Aseinfo.Infrastructure.Base.Exceptions.AuthorizationWorkflowException: Sucedio un error en el flujo. Se está logueando el exception interno y luego se logueará el que terminará la instancia ---> System.InvalidOperationException: Collection was modified; enumeration operation may not execute.
   at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
   at System.Collections.Generic.Dictionary`2.KeyCollection.Enumerator.MoveNext()
   at Microsoft.Practices.Unity.UnityContainer.FillTypeRegistrationDictionary(IDictionary`2 typeRegistrations)
   at Microsoft.Practices.Unity.UnityContainer.FillTypeRegistrationDictionary(IDictionary`2 typeRegistrations)
   at Microsoft.Practices.Unity.UnityContainer.get_Registrations()
   at Microsoft.Practices.Unity.UnityContainerExtensions.IsRegistered(IUnityContainer container, Type typeToCheck, String nameToCheck)
   at Aseinfo.VH4.WorkflowServices.Global.BuildChildContainer(WorkflowContext context) in C:\vh4\VH4\WorkflowServices\WorkflowServices\Global.asax.cs:line 329
   at Aseinfo.VH4.WorkflowServices.Services.AuthorizationWorkflowStaticService.NotificaActividadInstancia(Int32 codigoActividad, String username, WorkflowContext context) in C:\vh4\VH4\WorkflowServices\WorkflowServices\Services\AuthorizationWorkflowStaticService.cs:line 51
   --- End of inner exception stack trace ---
   at System.Activities.Statements.MethodExecutor.InvokeAndUnwrapExceptions(Func`3 func, Object targetInstance, Object[] actualParameters)
   at System.Activities.Statements.MethodResolver.SyncMethodExecutor.BeginMakeMethodCall(AsyncCodeActivityContext context, Object target, AsyncCallback callback, Object state)
   at System.Activities.Statements.MethodExecutor.BeginExecuteMethod(AsyncCodeActivityContext context, AsyncCallback callback, Object state)
   at System.Activities.AsyncCodeActivity.InternalExecute(ActivityInstance instance, ActivityExecutor executor, BookmarkManager bookmarkManager)
   at System.Activities.Runtime.ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody(ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation)