Native mobile: push notifications iOS devices

I'm having issues with receiving push notifications on iOS devices. The build is completed correctly, the entitlements are installed. I have created a firebase config and added an APN verification key to the cloud messaging config of Firebase and the push notifications are configured in Mendix. When I debug the test message the service returns an OK but nothing happens on the device.. Am I missing something? I'm using version 5.1.3 of the native-template, Mendix version 8.15.0  
1 answers

Upgrading to the latest version of the push notifications connector module (5.1.5) did the trick!