debug

src/View/MainWindow.py

@@ -1578,6 +1578,8 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
         if run.exec():
             results = self.diff_results(run.solver1,
                                         run.solver2)
+        else:
+            return
 
         # At least one result not available
         if results is None: