Onesignal push not working correctly

I am using Android Oreo (8.1). I don’t know why Onesignal Push notification not working on my device. Sometimes (!) when app screen is on the push notification arrived (not all the time) as a 'Message Dialogue. But after that never arrived. I don’t know whether I’m only facing this problem or many of us? I don’t even know whether there is any special Blocks. Help plz.

It’s a know bug.

I am also not receiving push notification in my oreo device Honor 9 lite mobile. Kindly help me .

I think they said Oreo and below is supported rn.

I have solved my problem. now i m getting notification in android oreo 8.0 n other .