diff --git a/apps/graph/app.cpp b/apps/graph/app.cpp
index 464c73c7a..8c8bd9188 100644
--- a/apps/graph/app.cpp
+++ b/apps/graph/app.cpp
@@ -52,6 +52,7 @@ InteractiveCurveViewRange * App::Snapshot::graphRange() {
 
 void App::Snapshot::tidy() {
   m_functionStore.tidy();
+  m_graphRange.setDelegate(nullptr);
 }
 
 App::App(Container * container, Snapshot * snapshot) :
diff --git a/apps/sequence/app.cpp b/apps/sequence/app.cpp
index 521bcc159..1dfb024b5 100644
--- a/apps/sequence/app.cpp
+++ b/apps/sequence/app.cpp
@@ -50,6 +50,7 @@ CurveViewRange * App::Snapshot::graphRange() {
 
 void App::Snapshot::tidy() {
   m_sequenceStore.tidy();
+  m_graphRange.setDelegate(nullptr);
 }
 
 App::App(Container * container, Snapshot * snapshot) :