diff --git a/cinelerra-5.1/cinelerra/mwindowedit.C b/cinelerra-5.1/cinelerra/mwindowedit.C
index 458ced96..729611d9 100644
--- a/cinelerra-5.1/cinelerra/mwindowedit.C
+++ b/cinelerra-5.1/cinelerra/mwindowedit.C
@@ -840,10 +840,12 @@ void MWindow::insert_effect(char *title, SharedLocation *shared_location,
 	Track *current = edl->tracks->first;
 	SharedLocation shared_location_local;
 	shared_location_local.copy_from(shared_location);
+	int gang = edl->local_session->gang_tracks != GANG_NONE ? 1 : 0;
 	int first_track = 1;
 	double start_pos = edl->local_session->get_selectionstart();
 	double end_pos = edl->local_session->get_selectionend();
 	for( ; current; current=NEXT ) {
+		if( gang && current->master && !first_track ) break;
 		if( current->data_type != data_type ) continue;
 		if( !current->is_armed() ) continue;
 		double start = start_pos, end = end_pos;