diff --git a/fixtracks/widgets/detectiontimeline.py b/fixtracks/widgets/detectiontimeline.py
index a7c6a51..a8d096c 100644
--- a/fixtracks/widgets/detectiontimeline.py
+++ b/fixtracks/widgets/detectiontimeline.py
@@ -1,11 +1,11 @@
 import logging
 import numpy as np
-import pandas as pd
+
 from PySide6.QtCore import Qt
 from PySide6.QtWidgets import QWidget, QVBoxLayout, QSizePolicy, QLabel
-from PySide6.QtWidgets import QGraphicsView, QGraphicsScene, QGraphicsItem, QGraphicsRectItem, QGraphicsLineItem
+from PySide6.QtWidgets import QGraphicsView, QGraphicsScene, QGraphicsItem, QGraphicsRectItem, QGraphicsLineItem, QGraphicsEllipseItem
 from PySide6.QtCore import Qt, QRectF, QRectF
-from PySide6.QtGui import QBrush, QColor, QPen, QFont, QPainter
+from PySide6.QtGui import QBrush, QColor, QPen, QFont
 
 from fixtracks.utils.signals import DetectionTimelineSignals
 from fixtracks.utils.trackingdata import TrackingData
@@ -57,7 +57,7 @@ class Window(QGraphicsRectItem):
         self._width = newwidth
         r = self.rect()
         self.setRect(newx, r.y(), self._width, r.height())
-        self.paint()
+        self.update()
         self.signals.windowMoved.emit()
 
     def mouseMoveEvent(self, event):
@@ -158,13 +158,15 @@ class DetectionTimeline(QWidget):
         # self.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Fixed)
 
     def setData(self, data:TrackingData):
+        logging.debug("Timeline: setData!")
         self._data = data
         for i in self._scene.items():
-            if isinstance(i, QGraphicsLineItem):
+            if isinstance(i, (QGraphicsLineItem, QGraphicsEllipseItem)):
                 self._scene.removeItem(i)
         self.draw_coverage()
 
     def draw_coverage(self):
+        logging.debug("Timeline: drawCoverage!")
         if isinstance(self._data, TrackingData):
             maxframe = np.max(self._data["frame"])
             bins = np.linspace(0, maxframe, self._stepCount)