diff --git a/src/MissionManager/StructureScanComplexItem.cc b/src/MissionManager/StructureScanComplexItem.cc
index 4c8aac49584455541c6811dad6390f499fe375d6..100896efbbf25459e7bace94f60ba1ccfad231bf 100644
--- a/src/MissionManager/StructureScanComplexItem.cc
+++ b/src/MissionManager/StructureScanComplexItem.cc
@@ -63,9 +63,11 @@ StructureScanComplexItem::StructureScanComplexItem(Vehicle* vehicle, bool flyVie
     connect(&_altitudeFact, &Fact::valueChanged, this, &StructureScanComplexItem::_updateCoordinateAltitudes);
 
     connect(&_structurePolygon, &QGCMapPolygon::dirtyChanged,   this, &StructureScanComplexItem::_polygonDirtyChanged);
-    connect(&_structurePolygon, &QGCMapPolygon::countChanged,   this, &StructureScanComplexItem::_polygonCountChanged);
     connect(&_structurePolygon, &QGCMapPolygon::pathChanged,    this, &StructureScanComplexItem::_rebuildFlightPolygon);
 
+    connect(&_structurePolygon, &QGCMapPolygon::countChanged,   this, &StructureScanComplexItem::_updateLastSequenceNumber);
+    connect(&_layersFact,       &Fact::valueChanged,            this, &StructureScanComplexItem::_updateLastSequenceNumber);
+
     connect(&_flightPolygon,    &QGCMapPolygon::pathChanged,    this, &StructureScanComplexItem::_flightPathChanged);
 
     connect(_cameraCalc.distanceToSurface(),    &Fact::valueChanged,                this, &StructureScanComplexItem::_rebuildFlightPolygon);
@@ -108,9 +110,8 @@ void StructureScanComplexItem::_clearInternal(void)
     emit lastSequenceNumberChanged(lastSequenceNumber());
 }
 
-void StructureScanComplexItem::_polygonCountChanged(int count)
+void StructureScanComplexItem::_updateLastSequenceNumber(void)
 {
-    Q_UNUSED(count);
     emit lastSequenceNumberChanged(lastSequenceNumber());
 }
 
diff --git a/src/MissionManager/StructureScanComplexItem.h b/src/MissionManager/StructureScanComplexItem.h
index 904f57e4c3c1bc9cacc6f3035705863d949a89c4..068b8a40645ef83215c3068d53c079ae3075d006 100644
--- a/src/MissionManager/StructureScanComplexItem.h
+++ b/src/MissionManager/StructureScanComplexItem.h
@@ -107,13 +107,13 @@ signals:
 private slots:
     void _setDirty(void);
     void _polygonDirtyChanged       (bool dirty);
-    void _polygonCountChanged       (int count);
     void _flightPathChanged         (void);
     void _clearInternal             (void);
     void _updateCoordinateAltitudes (void);
     void _rebuildFlightPolygon      (void);
     void _recalcCameraShots         (void);
     void _recalcLayerInfo           (void);
+    void _updateLastSequenceNumber  (void);
 
 private:
     void _setExitCoordinate(const QGeoCoordinate& coordinate);