diff --git a/tools/cabana/chart/chartswidget.cc b/tools/cabana/chart/chartswidget.cc
index 2495096b1a..83991d914f 100644
--- a/tools/cabana/chart/chartswidget.cc
+++ b/tools/cabana/chart/chartswidget.cc
@@ -289,6 +289,7 @@ void ChartsWidget::splitChart(ChartView *src_chart) {
     }
     src_chart->updateAxisY();
     src_chart->updateTitle();
+    QTimer::singleShot(0, src_chart, &ChartView::resetChartCache);
   }
 }
 
diff --git a/tools/cabana/streams/abstractstream.h b/tools/cabana/streams/abstractstream.h
index eae34e2cc4..3a89d4e57d 100644
--- a/tools/cabana/streams/abstractstream.h
+++ b/tools/cabana/streams/abstractstream.h
@@ -30,7 +30,7 @@ struct CanData {
   std::vector<std::array<uint32_t, 8>> bit_change_counts;
   std::vector<int> last_delta;
   std::vector<int> same_delta_counter;
-  double last_freq_update_ts = seconds_since_boot();
+  double last_freq_update_ts = 0;
 };
 
 struct CanEvent {