diff --git a/BtlGeomProc.cpp b/BtlGeomProc.cpp
index 52349db..185ee5d 100644
--- a/BtlGeomProc.cpp
+++ b/BtlGeomProc.cpp
@@ -6960,7 +6960,7 @@ BtlGeom::CreateFreeContours( void)
             Vector3d vtN ;
             if ( pPocket->GetFacetNormal( 0, vtN)  &&  vtExtr * vtN < 0) {
                pPocket->Invert() ;
-               if ( nGroup == 3) {
+               if ( nGroup != 4) {
                   pStm->Invert() ;
                   pCrvCompo->Invert() ;
                }
diff --git a/EgtExchange.rc b/EgtExchange.rc
index 0b31e43..6268340 100644
Binary files a/EgtExchange.rc and b/EgtExchange.rc differ