[iOS] No errors but notifications still don't show up

I've followed every step and did not manage to get notifications to work, I've managed to make them work before for few other application but since firebase updated to 4.5.0 I can't make them work. I get no errors what so ever. When I send notification to single device using token Firebase returns success but no notification is received on device. Have no idea what to do. And yes I did upload .p12 certificates to firebase in order to make them work. I'm stuck.

So app gives no errors and firebase gives no errors. I do get token from fcm.

Using react native 0.43.4