During the 64bit Testing we changed our noptification icons. They are now in the AndroidResources/res folder and are used by adding
applicationChildElements = { [[\<meta-data android:name="com.google.firebase.messaging.default\_notification\_icon" android:resource="@drawable/notification\_icon"/\>]] }, }
to our build.settings file.
That works, whenever the app is closed or in the background. However, sometimes you receive a notification, while you have the app open. In this case, instead of the notification icon we selected, a “Warning Sign” (I added a screenshot) is displayed.
We’re using Corona 2019.3521 right now.