I have explained overtime that Una App push are triggered or sourced from your site.... the issue has nothing to do with the application itself. You are able to receive push notification with the mobile app when a message is sent from one signal but no push when it is sent from your site (and in some cases, stale push was sent from your site to the app days after), which means all was correctly configured in the app. This shows it's a site issue since the mobile app is able to receive a push notification in general. As you see from screenshot, on your site's dashboard, push's stuck up in queues and needs to be cleared.

Am very much online now to look into this. I sent you a pm to kindly review the credentials so we can close out on this at the soonest.

Thanks for your time.