diff --git a/fixtracks/widgets/detectionview.py b/fixtracks/widgets/detectionview.py
index c722f7d..fdd3374 100644
--- a/fixtracks/widgets/detectionview.py
+++ b/fixtracks/widgets/detectionview.py
@@ -111,6 +111,7 @@ class DetectionView(QWidget):
             item.setData(0, track_ids[i])
             item.setData(1, detection_ids[i])
             item = self._scene.addItem(item)
+        logging.debug("DetectionView: Number of items in scene: %i", len(self._scene.items()))
 
     def fit_image_to_view(self):
         """Scale the image to fit the QGraphicsView."""