I developed an app with push notifications, I uploaded it to the AppStore and everything worked fine, notifications did arrive. I now have updated the app to open an url when users taps on the notification. While testing in debug mode with device connected through cable everything works fine.
The problem is that if I release the app through TestFlight (setting FIRInstanceIDAPNSTokenType.Prod), the device will not receive any notification.
I have been struggling for a couple of days, I thought there was a certificate problem, so I reset development and release certificates and also updated the firebase .p12 certificates.
I am developing under Xcode 7.3.1 using swift 2.
Did I miss something?
Thank you