diff --git a/MatterControlLib/PartPreviewWindow/View3D/Actions/MeshWrapperObject3D.cs b/MatterControlLib/PartPreviewWindow/View3D/Actions/MeshWrapperObject3D.cs
index f1c615977..9e2a25651 100644
--- a/MatterControlLib/PartPreviewWindow/View3D/Actions/MeshWrapperObject3D.cs
+++ b/MatterControlLib/PartPreviewWindow/View3D/Actions/MeshWrapperObject3D.cs
@@ -80,7 +80,7 @@ namespace MatterHackers.MatterControl.PartPreviewWindow.View3D
 		/// <returns></returns>
 		public override AxisAlignedBoundingBox GetAxisAlignedBoundingBox(Matrix4X4 matrix)
 		{
-			AxisAlignedBoundingBox totalBounds = AxisAlignedBoundingBox.Empty;
+			AxisAlignedBoundingBox totalBounds = AxisAlignedBoundingBox.Empty();
 
 			foreach (var child in this.Descendants().Where(i => i.OwnerID == this.ID && i.Visible))
 			{
diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index 352421680..bf5de19eb 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit 352421680a6529edcf05ba61620e011e706d3ffb
+Subproject commit bf5de19eb385bb340a63c24bc5dec96838b622c2