Weird behavior of checkable action toggling in a QMenu

[enjoysmath]

    def _buildSceneContextMenu(self):
        menu = QMenu()
        
        place_menu = menu.addMenu('Place')
        place_led = place_menu.addAction('LED')
        place_button = place_menu.addAction('Button')
        
        self._placeActions = [place_led, place_button]
        
        for action in self._placeActions:
            action.setCheckable(True)
            action.triggered.connect(lambda: self._placeActionTriggered(action))
                
        place_led.setChecked(True)
        
        # place_led.triggered.connect(lambda b: None)
        return menu
    
    def _placeActionTriggered(self, action):
        for action1 in self._placeActions:
            if action != action1:
                action1.setChecked(False)
                
        action.setChecked(True)

This doesn't work as expected. LED starts off checked, and I can click Button and it gets checked, but I can't switch back to LED. It is not a case of the lambda's getting mixed up for which you would need another function to connect the triggered signal - I checked the address of action parameter in _placeActionTriggered. I can't use a QActionGroup, because it simply did not work (no radios or checks presented).

[enjoysmath]

No, it is a case of the signal connections getting mixed up, because this fixed it:

        self._placeActions = [place_led, place_button]
        
        def connectPlaceActionTrigger(action):
            action.triggered.connect(lambda: self._placeActionTriggered(action))
        
        for action in self._placeActions:
            action.setCheckable(True)
            connectPlaceActionTrigger(action)