App Icon not showing on devices with android version greater than 4.4.2

Question

Working on an android Project with Android Studio 3.0 canary 3. Everything is working fine except the app icon not displaying on devices with android version greater than 4.4.2.

Below is the Manifest Code.

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

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />

    <supports-screens
        android:anyDensity="true"
        android:largeScreens="true"
        android:normalScreens="true"
        android:smallScreens="true" />

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

        <activity
            android:name="com.tanamo.dicto.ui.Flash"
            android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

             <activity
            android:name="com.tanamo.dicto.ui.MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme">

            <intent-filter>
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>

        </activity>


        <activity
            android:name="com.google.android.gms.ads.AdActivity"
            android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
            android:theme="@android:style/Theme.Translucent" />

        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

        <meta-data
            android:name="io.fabric.ApiKey"
            android:value="e37648ec32244464a260f2ec74053af82bfd1335" />

    </application>

</manifest>