I'm attempting to send notifications to my via via Back4App.com which is a parse backend server, but nothing is being sent and I'm not sure why.
Everything was working fine, when I first implemented it - but now that I have rolled out the current app version to TestFlight I am no longer able to send notifications from the dashboard - getting the following error: stream ended unexpectedly.
I have tried recreating and re-uploading both the development and production push certificates but still having the same issue. I've also tested on a APNs service which is sending notifications as expected.
Any ideas what I could have missed here?