diff --git a/src/src/Rendering/Legend/ReferenceLineLegendActor.cpp b/src/src/Rendering/Legend/ReferenceLineLegendActor.cpp
index 2008758..1599add 100644
--- a/src/src/Rendering/Legend/ReferenceLineLegendActor.cpp
+++ b/src/src/Rendering/Legend/ReferenceLineLegendActor.cpp
@@ -60,7 +60,13 @@ int ReferenceLineLegendActor::RenderOverlay(vtkViewport *viewport) {
 }
 
 void ReferenceLineLegendActor::BuildShape(vtkRenderer *renderer) {
-    if (mModifyTime == MTime)return;
+    QString rendererSize = QString("rendererSize:%1,%2").arg(renderer->GetRenderWindow()->GetSize()[0]).arg(renderer->GetRenderWindow()->GetSize()[1]);
+    QString newRenderTime = QString("%1-%2-%3-%4").arg(linePoints->GetMTime())
+        .arg(rendererSize).arg(renderer->GetActiveCamera()->GetMTime())
+        .arg(GetMTime());
+    
+    if (mRenderTime == newRenderTime) 
+        return;
     if (Visibility) {
 
         vtkNew<vtkPoints> pts;
@@ -98,5 +104,5 @@ void ReferenceLineLegendActor::BuildShape(vtkRenderer *renderer) {
         shadow2D->GetMapper()->SetInputDataObject(renderData);
         actor2D->GetMapper()->SetInputDataObject(renderData);
     }
-    mModifyTime = MTime;
+     mRenderTime=newRenderTime;
 }
diff --git a/src/src/Rendering/Legend/ReferenceLineLegendActor.h b/src/src/Rendering/Legend/ReferenceLineLegendActor.h
index 9583977..64276cd 100644
--- a/src/src/Rendering/Legend/ReferenceLineLegendActor.h
+++ b/src/src/Rendering/Legend/ReferenceLineLegendActor.h
@@ -7,6 +7,8 @@
 #include <vtkPolyData.h>
 #include <vtkNew.h> // for ivars
 
+#include <QString>
+
 class vtkRenderer;
 
 class ReferenceLineLegendActor : public vtkProp {
@@ -77,7 +79,7 @@ private:
     ReferenceLineLegendActor(const ReferenceLineLegendActor &) = delete;
 
     void operator=(const ReferenceLineLegendActor &) = delete;
-    vtkTimeStamp mModifyTime;
+    QString mRenderTime;
     static bool TypeVisibility;
 };
 
diff --git a/src/src/UI/Widget/ImageView/dicomimageview.cpp b/src/src/UI/Widget/ImageView/dicomimageview.cpp
index 7aef478..5480c6b 100644
--- a/src/src/UI/Widget/ImageView/dicomimageview.cpp
+++ b/src/src/UI/Widget/ImageView/dicomimageview.cpp
@@ -324,8 +324,6 @@ void DicomImageView::resizeEvent(QResizeEvent *event) {
     }
     QWidget::resizeEvent(event);
 
-    // force update ReferenceLine data
-    mImageViewer->modifiedReferenceLine();
     mImageViewer->ResetZoomScaleToFitWindowSize();
     mImageViewer->Render();
     if (mIsCine) {