diff --git a/src/__Libraries/StellaOps.ElkSharp/ElkEdgeRouterIterative.BoundaryFirst.CorridorReroute.cs b/src/__Libraries/StellaOps.ElkSharp/ElkEdgeRouterIterative.BoundaryFirst.CorridorReroute.cs
index 1afb03343..0e0ac05e2 100644
--- a/src/__Libraries/StellaOps.ElkSharp/ElkEdgeRouterIterative.BoundaryFirst.CorridorReroute.cs
+++ b/src/__Libraries/StellaOps.ElkSharp/ElkEdgeRouterIterative.BoundaryFirst.CorridorReroute.cs
@@ -209,12 +209,30 @@ internal static partial class ElkEdgeRouterIterative
                     && bestPushY < graphMaxY + 56d
                     && Math.Abs(bestPushY - laneY) > 2d)
                 {
-                    var newPath = new List<ElkPoint>(path.Count);
+                    var newPath = new List<ElkPoint>(path.Count + 2);
                     for (var i = 0; i < path.Count; i++)
                     {
                         if (i >= bestSegStart && i <= bestSegStart + 1
                             && Math.Abs(path[i].Y - laneY) <= 2d)
                         {
+                            // Preserve source connection (first point).
+                            if (i == 0)
+                            {
+                                newPath.Add(path[i]);
+                                continue;
+                            }
+
+                            // Preserve target connection (last point) —
+                            // insert a vertical step to reconnect.
+                            if (i == path.Count - 1)
+                            {
+                                var stepX = path[i].X + (path[i - 1].X > path[i].X ? 24d : -24d);
+                                newPath.Add(new ElkPoint { X = stepX, Y = bestPushY });
+                                newPath.Add(new ElkPoint { X = stepX, Y = path[i].Y });
+                                newPath.Add(path[i]);
+                                continue;
+                            }
+
                             newPath.Add(new ElkPoint { X = path[i].X, Y = bestPushY });
                         }
                         else