Android AppWidget Config Activity not working on device

Question

I have an AppWidget with a configuration activity that launches when the widget is added to the home screen. It works perfectly fine on the emulator, but when I load on a physical device, the widget is not added to the home screen after the configuration activity finishes. Both the emulator and the hardware device are a Samsung Galaxy S7, API level 23, with the app's target API set to 26.

Even if I remove all my logic and just have an empty widget and an empty configuration activity, it does not work on my device. But as soon as I remove the activity from the appwidget-provider xml tag, it works fine.

Any ideas? I'm thinking it must be something with the system settings, maybe the storage options?

I notice these errors that appear when running on the device, but they don't look directly related to the problem

E/MotionRecognitionManager: mSContextService = android.hardware.scontext.ISContextService$Stub$Proxy@e5f8725
E/MotionRecognitionManager: motionService = com.samsung.android.motion.IMotionRecognitionService$Stub$Proxy@57800fa
E/MotionRecognitionManager: motionService = com.samsung.android.motion.IMotionRecognitionService$Stub$Proxy@57800fa

Configuration Activity

public class ConfigureActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_configure);
        setResult(RESULT_CANCELED);
    }

    public void onDoneClick(View view) {
        setResult(RESULT_OK);

        Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE, null, this, WidgetActivity.class);
        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, 0);
        sendBroadcast(intent);

        finish();
    }
}

Widget Activity

public class WidgetActivity extends AppWidgetProvider {

    static void updateAppWidget(Context context, AppWidgetManager appWidgetManager, int appWidgetId) {

        RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_activity);

        // Instruct the widget manager to update the widget
        appWidgetManager.updateAppWidget(appWidgetId, views);
    }

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        for (int appWidgetId : appWidgetIds) {
            updateAppWidget(context, appWidgetManager, appWidgetId);
        }
    }

    @Override
    public void onEnabled(Context context) {
        // Enter relevant functionality for when the first widget is created
    }

    @Override
    public void onDisabled(Context context) {
        // Enter relevant functionality for when the last widget is disabled
    }
}

Android Manifest

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.widget">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:installLocation="internalOnly"
        android:theme="@style/AppTheme">

        <activity android:name=".ConfigureActivity">
            <intent-filter>
                <action android:name="android.appwidget.action.APPWIDGET_CONFIGURE"/>
            </intent-filter>
        </activity>

        <receiver android:name=".WidgetActivity">
            <intent-filter>
                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
            </intent-filter>

            <meta-data
                android:name="android.appwidget.provider"
                android:resource="@xml/widget_activity_info" />
        </receiver>

    </application>

</manifest>

widget_activity_info.xml

<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
    android:configure="com.example.widget.ConfigureActivity"
    android:initialKeyguardLayout="@layout/widget_activity"
    android:initialLayout="@layout/widget_activity"
    android:minHeight="110dp"
    android:minWidth="250dp"
    android:previewImage="@drawable/example_appwidget_preview"
    android:resizeMode="horizontal|vertical"
    android:updatePeriodMillis="86400000"
    android:widgetCategory="home_screen|keyguard">

</appwidget-provider>