I am using AI2Offline (to be able to set AppPackage). For Firebase I am using FirebaseUtil extension. At Firebase server is set to United States (us-central1). In development mode everything is working properly. In compiled APK app opens and closes immediately.
I also tried to delete FirebaseUtil extension and use FirebaseDB but same situation - app opens and closes immediately.
Also tried to create new project at Firebase again with United States (us-central1) server and use it instead of the previous one but same situation.
When I delete FirebaseUtil and FirebaseDB app starts normally.