Surface snapping attached actors cause unexpected behavior

+
+static void GetAttachedActorsRecursive(const AActor* InActor, TArray<AActor*>& OutActors)
+{
+     TArray<AActor*> AttachedActors;
+     InActor->GetAttachedActors(AttachedActors);
+     for (AActor* AttachedActor : AttachedActors)
+     {
+       GetAttachedActorsRecursive(AttachedActor, OutActors);
+     }
+     OutActors.Append(OutActors);
+};
+
void FLevelEditorViewportClient::ProjectActorsIntoWorld(const TArray<AActor*>& Actors, FViewport* InViewport, const FVector& Drag, const FRotator& Rot)
{
// Compile an array of selected actors
@@ -2317,6 +2329,11 @@

    if (bIsOnScreen)
    {
+
+     TArray<AActor*> IgnoreActors;
+     IgnoreActors.Add(Actor);
+     GetAttachedActorsRecursive(Actor, IgnoreActors);
+
      // Determine how we're going to attempt to project the object onto the world
      if (CurrentAxis == EAxisList::XY || CurrentAxis == EAxisList::XZ || CurrentAxis == EAxisList::YZ)
      {
        @@ -2335,11 +2352,11 @@

        TrimLineToFrustum(Frustum, RayStart, RayEnd);

-       TraceResult = FActorPositioning::TraceWorldForPosition(*GetWorld(), *SceneView, RayStart, RayEnd, &Actors);
+       TraceResult = FActorPositioning::TraceWorldForPosition(*GetWorld(), *SceneView, RayStart, RayEnd, &IgnoreActors);
      }
      else
      {
-       TraceResult = FActorPositioning::TraceWorldForPosition(Cursor, *SceneView, &Actors);
+       TraceResult = FActorPositioning::TraceWorldForPosition(Cursor, *SceneView, &IgnoreActors);
      }
   }
}