diff --git a/libs/ardour/session_transport.cc b/libs/ardour/session_transport.cc
index faf6458b16..4ee2945579 100644
--- a/libs/ardour/session_transport.cc
+++ b/libs/ardour/session_transport.cc
@@ -454,7 +454,10 @@ Session::butler_transport_work ()
 			}
 			(*i)->non_realtime_locate (_transport_frame);
 		}
-
+		VCAList v = _vca_manager->vcas ();
+		for (VCAList::const_iterator i = v.begin(); i != v.end(); ++i) {
+			(*i)->transport_located (_transport_frame);
+		}
 	}
 
 	if (ptw & PostTransportAdjustCaptureBuffering) {
@@ -503,6 +506,10 @@ Session::butler_transport_work ()
 					goto restart;
 				}
 			}
+			VCAList v = _vca_manager->vcas ();
+			for (VCAList::const_iterator i = v.begin(); i != v.end(); ++i) {
+				(*i)->transport_located (_transport_frame);
+			}
 		}
 	}
 
@@ -608,6 +615,12 @@ Session::non_realtime_locate ()
 			(*i)->non_realtime_locate (_transport_frame);
 		}
 	}
+	{
+		VCAList v = _vca_manager->vcas ();
+		for (VCAList::const_iterator i = v.begin(); i != v.end(); ++i) {
+			(*i)->transport_located (_transport_frame);
+		}
+	}
 
 	_scene_changer->locate (_transport_frame);
 
@@ -888,6 +901,13 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
 		}
 	}
 
+	{
+		VCAList v = _vca_manager->vcas ();
+		for (VCAList::const_iterator i = v.begin(); i != v.end(); ++i) {
+			(*i)->transport_located (_transport_frame);
+		}
+	}
+
 	have_looped = false;
 
 	/* don't bother with this stuff if we're disconnected from the engine,