Animated QGraphicsOpacityEffect widget is partially opaque until clicking on window

[patrickkidd]

I have a QGraphicsView (under QMainWindow) with a pop-up QWidget for item properties which fades in with QGraphicsOpacity effect. The problem is that when I start the animation the outer frame of the widget fades in as expected, but the contents of the widget remains transparent until I click somewhere on the window.

Thoughts?

        self.effect = QGraphicsOpacityEffect(self)
        self.setGraphicsEffect(self.effect)
        self.opacityAnimation = QPropertyAnimation(self.effect, b'opacity')
        self.opacityAnimation.setDuration(300)
	self.opacityAnimation.finished.connect(self.onOpacityDone)

    def show(self):
        super().show()
        self.opacityAnimation.setStartValue(0)
        self.opacityAnimation.setEndValue(1)
        self.opacityAnimation.start()

    def hide(self):
        self.person = None
        if self.opacityAnimation.finished():
            self.opacityAnimation.setStartValue(0)
            self.opacityAnimation.setEndValue(1)
            self.opacityAnimation.start()
        else:
            super().hide()

    def onOpacityDone(self):
        if self.opacityAnimation.currentValue() == 0:
            super().hide()