[PyQt] QWidgetAction of QFrame not showing in menu

[malonn]

I am trying to set up a QPushButton with menu that has a horizontal frame in it, but it won't show. The button menu has several labels-based QWidgetActions that all work fine, but a frame won't show. Any ideas why?

self.remote_but = QPushButton('Blocked Content')
self.remote_menu = QMenu(self.remote_but)
self.remote_but.setMenu(self.remote_menu)
lab = QLabel(f'Allow content from <b>{from_addr}</b>')
widget = QWidgetAction(self.remote_menu)
widget.setDefaultWidget(lab)
self.remote_menu.addAction(widget)
frame = QFrame()
frame.setFrameShape(QFrame.Shape.HLine)
widget = QWidgetAction(self.remote_menu)
widget.setDefaultWidget(frame)
self.remote_menu.addAction(widget)

That's just an excerpt there's more to the code (multiple labels and configuring). Why isn't the frame showing? I ran actions() on the menu, and it includes the frame, however it doesn't show/display in the menu.