Dear
I have a problem with register messaging in iOS which is fine and working in Android.
When I call the command on iOS it takes an infinite time and doesn’t return an error or a value back. Which causes a halt in application start. I did all the registering by the book on the ‘manage’ section.
Are you testing the delivery of push notifications via TestFlight in appconnect?
Because you have the production version selected. This applies to apps in the Appstore and TestFlight. When running through the IDE, the sandbox is used.