OneSignal IN-APP Notification do not show when app is closed?

The situation is -

When the app is OPEN and you send a IN-APP Notification. It shows and works great.

But when the app is CLOSED and you send a IN-APP Notification. You get notification in notification bar. And when you click on the notification your app will open but the IN-APP Notification won’t show.

??

Ask along with screenshots or blocks etc etc