Android Build closes while splash screen without error in output log

So what it actually comes down to is this:

At the point where the splash screen (SplashActivity) is done and the GameActivity is created it will try to load libUE4.so
For some reason this fails but since it’s required to run the app stops.

I’m not sure why this happens. What engine version are you using? Is this a Blueprint only or C++ project?

I’m afraid I can only suggest you to try a full rebuild of your project and package and deploy it again.