diff --git a/QtPyLoT.py b/QtPyLoT.py
index 1136a29d..8e84cccb 100755
--- a/QtPyLoT.py
+++ b/QtPyLoT.py
@@ -1234,7 +1234,10 @@ class MainWindow(QMainWindow):
 
     def disconnect_pg(self):
         if self.poS_id:
-            self.dataPlot.plotWidget.scene().sigMouseClicked.disconnect()
+            try:
+                self.dataPlot.plotWidget.scene().sigMouseClicked.disconnect()
+            except:
+                pass
         
     def disconnect_mpl(self):
         if self.poS_id:
diff --git a/pylot/RELEASE-VERSION b/pylot/RELEASE-VERSION
index 9515eb1e..401c7fd7 100644
--- a/pylot/RELEASE-VERSION
+++ b/pylot/RELEASE-VERSION
@@ -1 +1 @@
-8e83-dirty
+a2c7-dirty