diff --git a/light9/curvecalc/curveview.py b/light9/curvecalc/curveview.py
--- a/light9/curvecalc/curveview.py
+++ b/light9/curvecalc/curveview.py
@@ -991,6 +991,7 @@ class CurveRow(object):
     def rebuild(self):
         self.curveView.rebuild()
         self.initCurveView()
+        self.update_ui_to_collapsed_state()
 
     def initCurveView(self):
         self.curveView.widget.show()