diff --git a/src/DynamoRevit/DynamoRevit.cs b/src/DynamoRevit/DynamoRevit.cs
index 3d34363e0..b1007a8db 100644
--- a/src/DynamoRevit/DynamoRevit.cs
+++ b/src/DynamoRevit/DynamoRevit.cs
@@ -607,8 +607,7 @@ private static RevitDynamoModel InitializeCoreModel(DynamoRevitCommandData comma
                 AuthProvider = new RevitOAuth2Provider(new DispatcherSynchronizationContext(Dispatcher.CurrentDispatcher)),
                 ExternalCommandData = commandData,
                 UpdateManager = revitUpdateManager,
-                ProcessMode = isAutomationMode ? TaskProcessMode.Synchronous : TaskProcessMode.Asynchronous,
-                Preferences = PreferenceSettings.Instance
+                ProcessMode = isAutomationMode ? TaskProcessMode.Synchronous : TaskProcessMode.Asynchronous
             });
         }
 
diff --git a/test/Libraries/RevitTestServices/RevitSystemTestBase.cs b/test/Libraries/RevitTestServices/RevitSystemTestBase.cs
index f5dfa0132..3c5e4f9e6 100644
--- a/test/Libraries/RevitTestServices/RevitSystemTestBase.cs
+++ b/test/Libraries/RevitTestServices/RevitSystemTestBase.cs
@@ -276,8 +276,7 @@ protected override void StartDynamo(TestSessionConfiguration testConfig)
                         SchedulerThread = new TestSchedulerThread(),
                         PackageManagerAddress = "https://www.dynamopackages.com",
                         ExternalCommandData = commandData,
-                        ProcessMode = RevitTaskProcessMode,
-                        Preferences = PreferenceSettings.Instance
+                        ProcessMode = RevitTaskProcessMode
                     });
 
                 Model = DynamoRevit.RevitDynamoModel;