Ad Connector Imports fail with: Object reference not set to an instance of an object

The connector is able to push data to AD, but throws an error when performing a change/all import from AD.

Has anyone run into this issue on imports?

20191210,04:34:48,UNIFY Identity Broker,Change detection engine,Information,"Change detection engine import all items started.
Change detection engine import all items for connector Active Directory Connector started.",Normal
20191210,04:34:54,UNIFY Identity Broker,Change detection engine,Error,"Change detection engine import all items failed.
Change detection engine import all items for connector Active Directory Connector failed with reason One or more errors occurred.. Duration: 00:00:05.5141233
Error details:
System.AggregateException: One or more errors occurred. ---> System.AggregateException: One or more errors occurred. ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Unify.Connectors.AD.ADConnector.TransformEntry(ADAgent agent, SearchResultEntry searchResultEntry, Int64& uSNChangedToken)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at Unify.Framework.Collections.EnumerableExtensions.<actiononlast>d__10`1.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Unify.Product.IdentityBroker.AuditReadingAsyncConnectorDecorator.<>c__DisplayClass1_0.<getallentitiesasync>b__0()
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   at Unify.Framework.Auditing.AuditingExtensions.<>c__DisplayClass7_0`1.<createandsendlogentryasync>b__0(Task`1 t)
   at Unify.Framework.Auditing.AuditingExtensions.<>c__DisplayClass5_0`1.<taskcontinuewithexceptionpassthough>b__0(Task`1 t)
   at System.Threading.Tasks.ContinuationResultTaskFromResultTask`2.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Unify.Product.IdentityBroker.EventNotifierReadingAsyncConnectorDecoratorBase`1.<getallentitiesasync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Unify.Product.IdentityBroker.ChangeDetectionImportAllAsyncJob.<importallchangeprocess>d__6.MoveNext()
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at Unify.Product.IdentityBroker.ChangeDetectionImportAllAsyncJob.RunBase()
   at Unify.Framework.DefinedScopeJobAuditTrailJobDecorator.Run()
   at Unify.Product.IdentityBroker.ConnectorJobExecutor.<>c__DisplayClass30_0.<run>b__0()
   at Unify.Framework.AsynchronousJobExecutor.PerformJobCallback(Object state)
---> (Inner Exception #0) System.AggregateException: One or more errors occurred. ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Unify.Connectors.AD.ADConnector.TransformEntry(ADAgent agent, SearchResultEntry searchResultEntry, Int64& uSNChangedToken)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at Unify.Framework.Collections.EnumerableExtensions.<actiononlast>d__10`1.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Unify.Product.IdentityBroker.AuditReadingAsyncConnectorDecorator.<>c__DisplayClass1_0.<getallentitiesasync>b__0()
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   at Unify.Framework.Auditing.AuditingExtensions.<>c__DisplayClass7_0`1.<createandsendlogentryasync>b__0(Task`1 t)
   at Unify.Framework.Auditing.AuditingExtensions.<>c__DisplayClass5_0`1.<taskcontinuewithexceptionpassthough>b__0(Task`1 t)
   at System.Threading.Tasks.ContinuationResultTaskFromResultTask`2.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Unify.Product.IdentityBroker.EventNotifierReadingAsyncConnectorDecoratorBase`1.<getallentitiesasync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Unify.Product.IdentityBroker.ChangeDetectionImportAllAsyncJob.<importallchangeprocess>d__6.MoveNext()
---> (Inner Exception #0) System.NullReferenceException: Object reference not set to an instance of an object.
   at Unify.Connectors.AD.ADConnector.TransformEntry(ADAgent agent, SearchResultEntry searchResultEntry, Int64& uSNChangedToken)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at Unify.Framework.Collections.EnumerableExtensions.<actiononlast>d__10`1.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Unify.Product.IdentityBroker.AuditReadingAsyncConnectorDecorator.<>c__DisplayClass1_0.<getallentitiesasync>b__0()
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()<---
<---
",Normal
</getallentitiesasync></actiononlast></importallchangeprocess></getallentitiesasync></taskcontinuewithexceptionpassthough></createandsendlogentryasync></getallentitiesasync></actiononlast></run></importallchangeprocess></getallentitiesasync></taskcontinuewithexceptionpassthough></createandsendlogentryasync></getallentitiesasync></actiononlast>