Notifications not appearing when app is running in the background

Hi Guys,

I am trying to trigger notifications from Bubble to my Native app on Android using OneSignal plugin.

So how it should ideally work is, the user starts a timer on Bubble and once the timer ends, it should send a notification to the app saying “Timer is up”.

So far, my onesignal is set up and I do get the notification if my app is open, however, I don’t receive any notification when the app is running in the background.

Does anyone have any idea on how can I notify the user when the app is in the background? #help

Anyone having this problem as well or is it just me?