Ionic FCM and Firebase not tracking opens in Firebase Console

Got this working so far, but Firebase Cloud Messaging is not tracking Opens or Conversions.

Is there an additional setting that I need to configure in order for this to happen?

I followed this guide over at AngularFirebase to get it implemented and everything is working (Pushes, topics, unsubscribe to topic, subscribe to topic, recurring, etc.) I just see no data for Opens or Conversions in the Firebase Console.

Has anyone had similar issues?

ionic (Ionic CLI) : 4.6.0
Ionic Framework : ionic-angular 3.9.2
@ionic/app-scripts : 3.1.10

cordova (Cordova CLI) : 8.1.2 (cordova-lib@8.1.1)
Cordova Platforms : android 7.1.4, ios 4.5.5
Cordova Plugins : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 1.1.1, (and 23 other plugins)

ios-deploy : 1.9.2
NodeJS : v6.15.1 (/usr/local/Cellar/node/11.5.0/bin/node)
npm : 3.10.10
OS : macOS Mojave
Xcode : Xcode 10.1 Build version 10B61