diff --git a/src/plugins/qmldesigner/components/timelineeditor/timelinegraphicsscene.cpp b/src/plugins/qmldesigner/components/timelineeditor/timelinegraphicsscene.cpp
index 2acf6601ab7..8511ebcfaf6 100644
--- a/src/plugins/qmldesigner/components/timelineeditor/timelinegraphicsscene.cpp
+++ b/src/plugins/qmldesigner/components/timelineeditor/timelinegraphicsscene.cpp
@@ -444,10 +444,12 @@ void TimelineGraphicsScene::invalidateHeightForTarget(const ModelNode &target)
 
 void TimelineGraphicsScene::invalidateScene()
 {
-    ModelNode node = timelineView()->modelNodeForId(
-        timelineWidget()->toolBar()->currentTimelineId());
-    setTimeline(QmlTimeline(node));
-    invalidateScrollbar();
+    if (timelineView()->isAttached()) {
+        ModelNode node = timelineView()->modelNodeForId(
+            timelineWidget()->toolBar()->currentTimelineId());
+        setTimeline(QmlTimeline(node));
+        invalidateScrollbar();
+    }
 }
 
 void TimelineGraphicsScene::invalidateScrollbar()
diff --git a/src/plugins/qmldesigner/components/timelineeditor/timelinewidget.cpp b/src/plugins/qmldesigner/components/timelineeditor/timelinewidget.cpp
index ceed4831791..81f45e5e0cc 100644
--- a/src/plugins/qmldesigner/components/timelineeditor/timelinewidget.cpp
+++ b/src/plugins/qmldesigner/components/timelineeditor/timelinewidget.cpp
@@ -625,6 +625,7 @@ void TimelineWidget::showEvent(QShowEvent *event)
     m_timelineView->setEnabled(true);
 
     graphicsScene()->setWidth(m_graphicsView->viewport()->width());
+    graphicsScene()->invalidateScene();
     graphicsScene()->invalidateLayout();
     graphicsScene()->invalidate();
     graphicsScene()->onShow();