diff --git a/src/ui/test/test.py b/src/ui/test/test.py
index 4b5de74..afe75a0 100755
--- a/src/ui/test/test.py
+++ b/src/ui/test/test.py
@@ -91,7 +91,7 @@ class Test(Widget):
             "count_end": Test_Assembly(img_path=None, text=u"LOTTO TERMINATO, PREMERE CONTINUA PERCOMINCIARNE UNO NUOVO", widget=Test_Count_End(components=self.components, recipe=self.recipe, step=self.step, pieces=self.pieces)),
             "done": Test_Assembly(img_path=self.select_step_img("success"), text=u"COLLAUDO COMPLETATO", widget=None),
             "emergency": Test_Assembly(img_path=self.select_step_img("reset_emergency"), text=u"EMERGENZA INTERVENUTA - RIPRISTINARE PULSANTE E SELEZIONARE \"RESET EMERGENZA\" DAL MEN\u00d9 \"STRUMENTI\"", widget=None),
-            "fail": Test_Assembly(img_path=self.select_step_img("fail"), text=u"CICLO INTERROTTO, PREMERE CONTINUA PER COMINCIARE UN NUOVO CICLO", widget=Test_Fail(),parent=self),
+            "fail": Test_Assembly(img_path=self.select_step_img("fail"), text=u"CICLO INTERROTTO, PREMERE CONTINUA PER COMINCIARE UN NUOVO CICLO", widget=Test_Fail(parent=self)),
             "leak_1": Test_Assembly(img_path=None, text=None, widget=Test_Leak(components=self.components, recipe=self.recipe, step=self.step, pieces=self.pieces,parent=self)),
             "leak_2": Test_Assembly(img_path=None, text=None, widget=Test_Leak(components=self.components, recipe=self.recipe, step=self.step, pieces=self.pieces,parent=self)),
             "instruction": Test_Assembly(img_path=None, text=u"ESEGUIRE LE OPERAZIONI DI MONTAGGIO INDICATE IN FIGURA", widget=Test_Instructions(components=self.components, recipe=self.recipe,bench_name=self.config.machine_id, step=self.step)),
@@ -102,7 +102,6 @@ class Test(Widget):
             "barcode_recipe_selection": Test_Assembly(img_path=self.select_step_img("scan"), text=u"LEGGERE IL BARCODE SULLA DIMA DEL COMPONENTE DA COLLAUDARE", widget=Barcode_Recipe_Selection(parent=self)),
             "vision": Test_Assembly(img_path=None, text=u"VERIFICARE CONTROLLO CON TELECAMERA", widget=Test_Vision(components=self.components, recipe=self.recipe, step=self.step, pieces=self.pieces)),
             "wait": Test_Assembly(img_path=self.select_step_img("wait"), text=u"ATTENDERE - PAUSA INTER CICLO", widget=None),
-            "discard": Test_Assembly(img_path=None, text=u"TEST KO - INSERIRE IL PEZZO COLLAUDATO NEL CONTENITORE DI SEGREGAZIONE SCARTI", widget=Test_Discard(components=self.components, recipe=self.recipe, step=self.step, pieces=self.pieces)),
             None: Test_Assembly(img_path=self.select_step_img("warning"), text=u"ATTENZIONE - LA RICETTA SELEZIONATA NON CONTIENE FASI DI TEST", widget=None),
         }
         self.cycle_steps = None
diff --git a/src/ui/test_fail/test_fail.py b/src/ui/test_fail/test_fail.py
index 7382244..ffcc5d2 100644
--- a/src/ui/test_fail/test_fail.py
+++ b/src/ui/test_fail/test_fail.py
@@ -38,7 +38,8 @@ class Test_Fail(Test_Test):
         return show
 
     def stop(self):
-        self.disconnect(self.io_connection)
+        if "discard_box" in self.parent.config["hardware_config"].keys():
+            self.disconnect(self.io_connection)
         super().stop()
 
     def wait_discard(self,data=None):