diff --git a/anabatic/src/AnabaticEngine.cpp b/anabatic/src/AnabaticEngine.cpp
index abba3634..909a4edc 100644
--- a/anabatic/src/AnabaticEngine.cpp
+++ b/anabatic/src/AnabaticEngine.cpp
@@ -810,7 +810,8 @@ namespace Anabatic {
       throw Error( badMethod, "Anabatic::loadGlobalRouting()", method, getString(_cell).c_str() );
     }
     cleanupGlobal();
-    relaxOverConstraineds();
+
+    if (not getConfiguration()->isTwoMetals()) relaxOverConstraineds();
 
     _state = EngineActive;
   }
diff --git a/anabatic/src/NetBuilder.cpp b/anabatic/src/NetBuilder.cpp
index 6924827f..2b2b087c 100644
--- a/anabatic/src/NetBuilder.cpp
+++ b/anabatic/src/NetBuilder.cpp
@@ -619,18 +619,19 @@ namespace Anabatic {
         case Conn_2G_1M1_1M2: _do_xG_1M1_1M2(); break;
         case Conn_2G_1PinM2:  _do_xG_xM2    (); break;
         default:
-          throw Bug( "Unmanaged Configuration [%d] = [%d+%d+%d+%d,%d+%d] %s in %s\n"
-                     "      The global routing seems to be defective."
-                   , _connexity.connexity
-                   , _connexity.fields.globals
-                   , _connexity.fields.M1     
-                   , _connexity.fields.M2     
-                   , _connexity.fields.M3
-                   , _connexity.fields.Pin
-                   , _connexity.fields.Pad
-                   , _net->_getString().c_str()
-                   , getString(_gcell).c_str()
-                   );
+          if (not isTwoMetals())
+            throw Bug( "Unmanaged Configuration [%d] = [%d+%d+%d+%d,%d+%d] %s in %s\n"
+                       "      The global routing seems to be defective."
+                     , _connexity.connexity
+                     , _connexity.fields.globals
+                     , _connexity.fields.M1     
+                     , _connexity.fields.M2     
+                     , _connexity.fields.M3
+                     , _connexity.fields.Pin
+                     , _connexity.fields.Pad
+                     , _net->_getString().c_str()
+                     , getString(_gcell).c_str()
+                     );
           _do_xG();
       }
 
diff --git a/anabatic/src/anabatic/AnabaticEngine.h b/anabatic/src/anabatic/AnabaticEngine.h
index 452d9fcb..ea5be0d6 100644
--- a/anabatic/src/anabatic/AnabaticEngine.h
+++ b/anabatic/src/anabatic/AnabaticEngine.h
@@ -280,6 +280,7 @@ namespace Anabatic {
       inline        void              _add                  ( GCell* );
       inline        void              _remove               ( GCell* );
       inline        void              _updateLookup         ( GCell* );
+      inline        void              _updateGContacts      ();
       inline        void              _resizeMatrix         ();
       inline        bool              _inDestroy            () const;
     // Inspector support.                                   
@@ -352,6 +353,7 @@ namespace Anabatic {
   inline const NetDatas&         AnabaticEngine::getNetDatas           () const { return _netDatas; }
   inline       void              AnabaticEngine::_updateLookup         ( GCell* gcell ) { _matrix.updateLookup(gcell); }
   inline       void              AnabaticEngine::_resizeMatrix         () { _matrix.resize( getCell(), getGCells() ); }
+  inline       void              AnabaticEngine::_updateGContacts      () { for ( GCell* gcell : getGCells() ) gcell->updateGContacts(); }
   inline       bool              AnabaticEngine::_inDestroy            () const { return _flags & Flags::DestroyMask; }
   
   inline void  AnabaticEngine::_add ( GCell* gcell )
diff --git a/anabatic/src/anabatic/NetBuilder.h b/anabatic/src/anabatic/NetBuilder.h
index fbacd458..c3b7ce26 100644
--- a/anabatic/src/anabatic/NetBuilder.h
+++ b/anabatic/src/anabatic/NetBuilder.h
@@ -238,6 +238,8 @@ namespace Anabatic {
                          , Conn_2G          = CONNEXITY_VALUE( 2, 0, 0, 0, 0 , 0 )
                          , Conn_3G          = CONNEXITY_VALUE( 3, 0, 0, 0, 0 , 0 )
                          , Conn_4G          = CONNEXITY_VALUE( 4, 0, 0, 0, 0 , 0 )
+                         , Conn_5G          = CONNEXITY_VALUE( 5, 0, 0, 0, 0 , 0 )
+                         , Conn_6G          = CONNEXITY_VALUE( 6, 0, 0, 0, 0 , 0 )
                          , Conn_0G_2M1      = CONNEXITY_VALUE( 0, 2, 0, 0, 0 , 0 )
                          , Conn_1G_1M1      = CONNEXITY_VALUE( 1, 1, 0, 0, 0 , 0 )
                          , Conn_1G_2M1      = CONNEXITY_VALUE( 1, 2, 0, 0, 0 , 0 )
diff --git a/katana/src/Block.cpp b/katana/src/Block.cpp
index ba964d82..a54820aa 100644
--- a/katana/src/Block.cpp
+++ b/katana/src/Block.cpp
@@ -342,7 +342,7 @@ namespace Katana {
 
       cmess2 << Dots::asString( rowName.str(), rowTracks.str() ) << endl;
     }
-
+    _katana->_updateGContacts();
     _katana->invalidateRoutingPads();
 
     if (not sessionReUse) Session::close();