diff --git a/Components/RuleAssemble.cs b/Components/RuleAssemble.cs
index c57a96a..6325f9d 100644
--- a/Components/RuleAssemble.cs
+++ b/Components/RuleAssemble.cs
@@ -164,7 +164,7 @@ protected override void SolveInstance(IGH_DataAccess DA) {
 
             var transformedSourceConnectorPlane = sourceConnector.AnchorPlane.Clone();
             transformedSourceConnectorPlane.Transform(sourceModuleTransform);
-            transformedSourceConnectorPlane.Flip();
+            transformedSourceConnectorPlane.Rotate(Math.PI, transformedSourceConnectorPlane.YAxis);
             var targetModuleTransform = Transform.PlaneToPlane(targetConnector.AnchorPlane,
                                                                transformedSourceConnectorPlane);
             var targetModuleGeometry = targetModule.Geometry.Select(geo => {
diff --git a/Properties/AssemblyInfo.cs b/Properties/AssemblyInfo.cs
index 9635499..dabcf82 100644
--- a/Properties/AssemblyInfo.cs
+++ b/Properties/AssemblyInfo.cs
@@ -35,5 +35,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.2.1.0")]
-[assembly: AssemblyFileVersion("1.2.1.0")]
+[assembly: AssemblyVersion("1.2.1.1")]
+[assembly: AssemblyFileVersion("1.2.1.1")]
diff --git a/bin/Monoceros.pdb b/bin/Monoceros.pdb
index cf82dab..78263f8 100644
Binary files a/bin/Monoceros.pdb and b/bin/Monoceros.pdb differ