diff --git a/MatterControlLib/ApplicationView/Config/PrinterConfig.cs b/MatterControlLib/ApplicationView/Config/PrinterConfig.cs
index 9e512c439..e8a1db6af 100644
--- a/MatterControlLib/ApplicationView/Config/PrinterConfig.cs
+++ b/MatterControlLib/ApplicationView/Config/PrinterConfig.cs
@@ -40,6 +40,7 @@ using Newtonsoft.Json;
 using System.Linq;
 using MatterHackers.DataConverters3D;
 using MatterHackers.MatterControl.DesignTools.Operations;
+using System.Collections.Generic;
 
 namespace MatterHackers.MatterControl
 {
@@ -69,7 +70,8 @@ namespace MatterHackers.MatterControl
 
 		private PrinterSettingsLayer sceneOverrides = new PrinterSettingsLayer();
 
-		private bool watingToCheckSceneLayer;
+		private RunningInterval checkForSceneLayer;
+		private object locker = new object();
 
 		private PrinterSettingsLayer GetSceneLayer()
 		{
@@ -77,7 +79,7 @@ namespace MatterHackers.MatterControl
 			if (scene != null)
 			{
 				var foundPartSettings = false;
-				var currentSceneOverrides = new PrinterSettingsLayer();
+				var newSceneOverrides = new PrinterSettingsLayer();
 				// accumulate all the scene overrides ordered by their names, which is the order they will be in the design tree
 				foreach (var partSettingsObject in scene.DescendantsAndSelf().Where(c => c is PartSettingsObject3D).OrderBy(i => i.Name))
 				{
@@ -85,30 +87,72 @@ namespace MatterHackers.MatterControl
 					var settings = ((PartSettingsObject3D)partSettingsObject).Overrides;
 					foreach (var setting in settings)
 					{
-						currentSceneOverrides[setting.Key] = setting.Value;
+						newSceneOverrides[setting.Key] = setting.Value;
 					}
 				}
 
-				var same = currentSceneOverrides.Count == sceneOverrides.Count && !currentSceneOverrides.Except(sceneOverrides).Any();
+				var same = newSceneOverrides.Count == sceneOverrides.Count && !newSceneOverrides.Except(sceneOverrides).Any();
+				// if settings count and keys the same, check the value of the settings
+				if (same && sceneOverrides.Count > 0)
+				{
+					// check each setting if it is the same
+					foreach (var kvp in newSceneOverrides)
+					{
+						if (sceneOverrides[kvp.Key] != newSceneOverrides[kvp.Key])
+						{
+							same = false;
+						}
+					}
+				}
 
 				// if they are different 
 				if (!same)
                 {
+					var settingsToUpdate = new HashSet<string>();
+					foreach (var kvp in sceneOverrides)
+					{
+						settingsToUpdate.Add(kvp.Key);
+					}
+					foreach (var kvp in newSceneOverrides)
+					{
+						settingsToUpdate.Add(kvp.Key);
+					}
+
 					// store that current set
-					sceneOverrides = currentSceneOverrides;
-					// stash user overrides for all the values that are set
-					Settings.DeactivateConflictingUserOverrides(sceneOverrides);
+					sceneOverrides = newSceneOverrides;
+
+					// we are about to update settings but they are stored in the scene not the profile so we don't have to save anything
+					var updateList = settingsToUpdate.ToList();
+					ProfileManager.SaveOnSingleSettingChange = false;
+					for (int i = 0; i < updateList.Count; i++)
+					{
+						Settings.OnSettingChanged(updateList[i]);
+					}
+					ProfileManager.SaveOnSingleSettingChange = true;
 				}
 
-				if (foundPartSettings && !watingToCheckSceneLayer)
+				if (foundPartSettings)
                 {
-					watingToCheckSceneLayer = true;
-					UiThread.RunOnIdle(() =>
+					lock (locker)
 					{
-						watingToCheckSceneLayer = false;
-						GetSceneLayer();
-					}, .5);
+						if (checkForSceneLayer == null)
+						{
+							checkForSceneLayer = UiThread.SetInterval(() =>
+							{
+								GetSceneLayer();
+							}, .5);
+						}
+					}
                 }
+				else if (checkForSceneLayer != null)
+                {
+					lock (locker)
+					{
+						// we don't have a scene layer so remove the interval
+						UiThread.ClearInterval(checkForSceneLayer);
+						checkForSceneLayer = null;
+					}
+				}
 
 				// return the current set
 				return sceneOverrides;
diff --git a/MatterControlLib/SlicerConfiguration/SliceSettingsRow.cs b/MatterControlLib/SlicerConfiguration/SliceSettingsRow.cs
index 09e0f2558..f6f230bb0 100644
--- a/MatterControlLib/SlicerConfiguration/SliceSettingsRow.cs
+++ b/MatterControlLib/SlicerConfiguration/SliceSettingsRow.cs
@@ -471,13 +471,11 @@ namespace MatterHackers.MatterControl.SlicerConfiguration
 		{
 			var data = GetStyleData(printer, theme, settingsContext, settingData.SlicerConfigName, settingData.ShowAsOverride);
 
-			if (this.HighlightColor != data.highlightColor
-				&& this.Parent != null)
+			if (this.HighlightColor != data.highlightColor)
 			{
 				this.HighlightColor = data.highlightColor;
-				// make sure the value is also updated
-				printer.Settings.OnSettingChanged(settingData.SlicerConfigName);
 			}
+
 			if (restoreButton != null)
 			{
 				restoreButton.Visible = data.showRestoreButton;
diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index 365d3ed68..54c34975d 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit 365d3ed687c1502e0d5f12d36ae79b03b92ba9e0
+Subproject commit 54c34975dc6d03cfab7875582256030810254d69