diff --git a/MatterControl.csproj b/MatterControl.csproj
index d9c02e44c..9086c9850 100644
--- a/MatterControl.csproj
+++ b/MatterControl.csproj
@@ -563,5 +563,17 @@
       <Project>{990A9AD3-B6A4-407B-9DFC-9C722AF7C9B9}</Project>
       <Name>InfInstaller</Name>
     </ProjectReference>
+    <ProjectReference Include="Submodules\MatterSlice\MSClipperLib\MSClipperLib.csproj">
+      <Project>{2c564be1-352d-4ddb-8226-f0981f983c60}</Project>
+      <Name>MSClipperLib</Name>
+    </ProjectReference>
+    <ProjectReference Include="Submodules\MatterSlice\Pathfinding\Pathfinding.csproj">
+      <Project>{8cb3464f-6130-4edb-8dc6-ccd2697fafbb}</Project>
+      <Name>Pathfinding</Name>
+    </ProjectReference>
+    <ProjectReference Include="Submodules\MatterSlice\QuadTree\QuadTree.csproj">
+      <Project>{23ec3364-7c93-4169-9ab2-7181c66004c0}</Project>
+      <Name>QuadTree</Name>
+    </ProjectReference>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/Submodules/MatterSlice b/Submodules/MatterSlice
index 5cc421058..2fadcc7c2 160000
--- a/Submodules/MatterSlice
+++ b/Submodules/MatterSlice
@@ -1 +1 @@
-Subproject commit 5cc421058b538c85543cfc40faccd4c48ded7023
+Subproject commit 2fadcc7c2297a0bf7d57005a3cb9eae25e20e92f
diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index 647d359b6..96681058f 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit 647d359b667cd2dd70158d65323d0ab82aaecb0c
+Subproject commit 96681058f3cf468886dac161c22e74f01ec43b49