QT code is not working on Windows, but it does on Linux/Mac

Hi!

I'm having an issue with an app created with QT5. The same code is working properly on Linux/Mac, but on Windows despite of it's executing when I want to execute a submenu clicking with the right botton of the mouse it doesn't respond and doesn't show the submenu. Sometimes de submenu appears but in a very random way. I don't know why is happening this, on the others OS the submenu appears without any problems. I'm using the same package versions.

Code:

Code:

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def contextMenuEvent(self, event):
        try:
            if self.cursor_mode:
                if self.click_box!=None and self.bboxes!=None:
                    #print(self.bboxes)
                    for index, b in enumerate(self.bboxes):
                        if b[0].x()<self.click_box.x()<b[1].x() and \
                        b[0].y()<self.click_box.y()<b[1].y():
                            #print(index,b)
                            menu = QMenu()
                            actionSet = []
                            for key, value in self.ind_to_class.items():
                                if 'prod' in value:
                                    menu_opt = menu.addMenu(value)
                                    for i in range(1, 21):
                                        if 'prod' in b[2]:
                                            btwo = b[2].rsplit('_')
                                            type_prod = btwo[1]
                                            prod_num = btwo[2]
                                            #print(btwo, type_prod, prod_num)
 
                                            if int(prod_num) == i and type_prod in value:
                                                color1 = str(self.gt_color[key][0])
                                                color2 = str(self.gt_color[key][1])
                                                color3 = str(self.gt_color[key][2])
                                                action_high = QtWidgets.QWidgetAction(menu)
                                                label = QtWidgets.QLabel(b[2])
                                                label.setStyleSheet("QLabel { color: " + self.text_color[
                                                    key] + "; background-color: rgb(" + color1 + "," + color2 + "," + color3 + "); padding: 5px 25px 5px 25px; } QLabel:hover { color: rgb(255,255,255);  background-color: #00457d;}")
                                                action_high.setDefaultWidget(label)
                                                action_high.setText(b[2])
                                                menu_opt.addAction(action_high)
                                            else:
                                                menu_opt.addAction(str(value) + '_' + str(i))
                                        else:
                                            menu_opt.addAction(str(value) + '_' + str(i))
                                else:
                                    if value == b[2]:
                                        color1 = str(self.gt_color[key][0])
                                        color2 = str(self.gt_color[key][1])
                                        color3 = str(self.gt_color[key][2])
                                        action_high = QtWidgets.QWidgetAction(menu)
                                        label = QtWidgets.QLabel(value)
                                        label.setStyleSheet("QLabel { color: " + self.text_color[key] + "; background-color: rgb(" + color1 + "," + color2 + "," + color3 + "); padding: 5px 25px 5px 25px; } QLabel:hover { color: rgb(255,255,255);  background-color: #00457d;}")
                                        action_high.setDefaultWidget(label)
                                        action_high.setText(value)
                                        menu.addAction(action_high)
 
                                    else:
                                        menu.addAction(value)
                            actionSet.append(menu)
                            action = menu.exec_(event.screenPos())
 
                            if action:
                                self.bboxes[index][2] = action.text()
 
            elif not self.cursor_mode:
                #print(self.click_boxes)
                if len(self.click_boxes) > 0 and self.bboxes!=None:
                    menu = QMenu()
                    actionSet = []
                    for key, value in self.ind_to_class.items():
                        ##########actionSet.append(menu.addAction(value))
 
                        if 'prod' in value:
                            menu_opt = menu.addMenu(value)
                            for i in range(1, 21):
                                menu_opt.addAction(str(value) + '_' + str(i))
                        else:
                            menu.addAction(value)
 
                    actionSet.append(menu)
                    action = menu.exec_(event.screenPos())
 
                    ind_sel = None
                    #for indi, vali in enumerate(actionSet):
                    #    if action == vali:
                    #        ind_sel = indi
 
 
                    #print("Class selected: "+str(ind_sel))
                    for index, b in enumerate(self.click_boxes):
                        self.bboxes[b[4]-1][2] = action.text()#self.ind_to_class[ind_sel]
 
                    self.click_boxes = []
                    self.draw_box = False
                    self.click = 0
        except:
            print('Problem')
        if self.print_callback != None:
            self.print_callback(self.bboxes)

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Thanks!
Teresa