Entity Search Table Errors

When using v5.3 entity search table (either connector or adapter), i'm running into a couple of errors;

If I attempt to order a column (just by clicking on the header), and any entity in the set has a NULL value for that field, I get this error from datatables:

Error
System.AggregateException: One or more errors occurred. ---> Unify.Framework.Client.SwaggerException: The HTTP status code of the response was not expected (500).
at Unify.Connect.Web.Client.EntityClient.<searchentitiesasync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Unify.Connect.Web.Client.ProfiledEntityClient.<searchentitiesasync>d__4.MoveNext()
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
at Unify.Connect.Web.IdentityBrokerEntitySearchController.CurrentEntities(EntityRetrievalInformation`1 information)
at Unify.Connect.Web.IdentityBrokerEntitySearchController.<entitydata>d__35.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at lambda_method(Closure , Task )
at System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass34.<begininvokeasynchronousactionmethod>b__33(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<invokeactionmethodfilterasynchronouslyrecursive>b__3c()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass45.<invokeactionmethodfilterasynchronouslyrecursive>b__3e()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass1e.<>c__DisplayClass28.<begininvokeaction>b__19()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass1e.<begininvokeaction>b__1b(IAsyncResult asyncResult)
---> (Inner Exception #0) HTTP Response: {"Message":"An error has occurred.","ExceptionMessage":"The entity does not contain a value for the XYZ field.","ExceptionType":"Unify.Framework.Collections.GroupedNameValueCollectionMissingFieldException",
"StackTrace":" at Unify.Product.IdentityBroker.EntityBase`3.GetValue[TValue](TKey key)\r\n 
at Unify.Connect.Web.ValueTypeIdentifierEntitySearchUtilityBase`4.<>c__DisplayClass1_0.<orderby>b__0(TEntity item)\r\n 
at System.Linq.EnumerableSorter`2.ComputeKeys(TElement[] elements, Int32 count)\r\n at System.Linq.EnumerableSorter`1.Sort(TElement[] elements, Int32 count)\r\n at System.Linq.OrderedEnumerable`1.<getenumerator>d__1.MoveNext()\r\n at Unify.Framework.Visitor.Visit[T](IEnumerable`1 visitCollection, Action`2 visitor)\r\n at Unify.Product.IdentityBroker.EntityController.ApplySkipTake(IEnumerable`1 entities, Int32 skip, Int32 take)\r\n at Unify.Product.IdentityBroker.EntityController.ApplySearch(SearchInformation searchInformation, IEnumerable`1 entities, Guid partitionId)\r\n at Unify.Product.IdentityBroker.EntityController.SearchEntities(Guid partitionId, SearchInformation searchInformation)\r\n at lambda_method(Closure , Object , Object[] )\r\n at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<getexecutor>b__9(Object instance, Object[] methodParameters)\r\n at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Controllers.ApiControllerActionInvoker.<invokeactionasynccore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Controllers.ActionFilterResult.<executeasync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.AuthorizationFilterAttribute.<executeauthorizationfilterasynccore>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Dispatcher.HttpControllerDispatcher.<sendasync>d__1.MoveNext()"} Unify.Framework.Client.SwaggerException: The HTTP status code of the response was not expected (500).
at Unify.Connect.Web.Client.EntityClient.<searchentitiesasync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Unify.Connect.Web.Client.ProfiledEntityClient.<searchentitiesasync>d__4.MoveNext()<---</searchentitiesasync></searchentitiesasync></sendasync></executeauthorizationfilterasynccore></executeasync></invokeactionasynccore></getexecutor></getenumerator></orderby></begininvokeaction></begininvokeaction></invokeactionmethodfilterasynchronouslyrecursive></invokeactionmethodfilterasynchronouslyrecursive></begininvokeasynchronousactionmethod></entitydata></searchentitiesasync></searchentitiesasync>

Likewise, If I attempt to use the "Is-Null" filter on any column (whether they're all populated or not), I get the following error:

Error
System.AggregateException: One or more errors occurred. ---> Unify.Framework.Client.SwaggerException: The HTTP status code of the response was not expected (500).
at Unify.Connect.Web.Client.EntityClient.<searchentitiesasync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Unify.Connect.Web.Client.ProfiledEntityClient.<searchentitiesasync>d__4.MoveNext()
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
at Unify.Connect.Web.IdentityBrokerEntitySearchController.CurrentEntities(EntityRetrievalInformation`1 information)
at Unify.Connect.Web.IdentityBrokerEntitySearchController.<entitydata>d__35.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at lambda_method(Closure , Task )
at System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass34.<begininvokeasynchronousactionmethod>b__33(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<invokeactionmethodfilterasynchronouslyrecursive>b__3c()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass45.<invokeactionmethodfilterasynchronouslyrecursive>b__3e()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass1e.<>c__DisplayClass28.<begininvokeaction>b__19()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass1e.<begininvokeaction>b__1b(IAsyncResult asyncResult)
---> (Inner Exception #0) HTTP Response: {"Message":"An error has occurred.","ExceptionMessage":"Could not find any resources appropriate for the specified culture or the neutral culture. Make sure \"Unify.Connect.Web.EntityResources.resources\" was correctly embedded or linked into assembly \"Unify.IdentityBroker.Entity.Api.Shared\" at compile time, or that all the satellite assemblies required are loadable and fully signed.","ExceptionType":"System.Resources.MissingManifestResourceException","StackTrace":" at System.Resources.ManifestBasedResourceGroveler.HandleResourceStreamMissing(String fileName)\r\n at System.Resources.ManifestBasedResourceGroveler.GrovelForResourceSet(CultureInfo culture, Dictionary`2 localResourceSets, Boolean tryParents, Boolean createIfNotExists, StackCrawlMark& stackMark)\r\n at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo requestedCulture, Boolean createIfNotExists, Boolean tryParents, StackCrawlMark& stackMark)\r\n at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo culture, Boolean createIfNotExists, Boolean tryParents)\r\n at System.Resources.ResourceManager.GetString(String name, CultureInfo culture)\r\n at Unify.Connect.Web.IdentifierEntitySearchUtilityBase`2.GenerateSearchFunction(FilterInformation searchInformation, IDictionary`2 schema)\r\n at Unify.Product.IdentityBroker.EntityController.ApplyFilter(IEnumerable`1 entities, FilterInformation filterInformation, Guid partitionId)\r\n at Unify.Product.IdentityBroker.EntityController.<>c__DisplayClass8_0.<applyfilter>b__0(IEnumerable`1 filtered, FilterInformation filter)\r\n at System.Linq.Enumerable.Aggregate[TSource,TAccumulate](IEnumerable`1 source, TAccumulate seed, Func`3 func)\r\n at Unify.Product.IdentityBroker.EntityController.ApplySearch(SearchInformation searchInformation, IEnumerable`1 entities, Guid partitionId)\r\n at Unify.Product.IdentityBroker.EntityController.SearchEntities(Guid partitionId, SearchInformation searchInformation)\r\n at lambda_method(Closure , Object , Object[] )\r\n at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<getexecutor>b__9(Object instance, Object[] methodParameters)\r\n at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Controllers.ApiControllerActionInvoker.<invokeactionasynccore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Controllers.ActionFilterResult.<executeasync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.AuthorizationFilterAttribute.<executeauthorizationfilterasynccore>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Dispatcher.HttpControllerDispatcher.<sendasync>d__1.MoveNext()"} Unify.Framework.Client.SwaggerException: The HTTP status code of the response was not expected (500).
at Unify.Connect.Web.Client.EntityClient.<searchentitiesasync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Unify.Connect.Web.Client.ProfiledEntityClient.<searchentitiesasync>d__4.MoveNext()<---</searchentitiesasync></searchentitiesasync></sendasync></executeauthorizationfilterasynccore></executeasync></invokeactionasynccore></getexecutor></applyfilter></begininvokeaction></begininvokeaction></invokeactionmethodfilterasynchronouslyrecursive></invokeactionmethodfilterasynchronouslyrecursive></begininvokeasynchronousactionmethod></entitydata></searchentitiesasync></searchentitiesasync>

I can seem to use other filters (such as "contains") on columns with null values no worries.

Replicated on both connector and adapter, on two machines. V5.3.0RTM