Hi Vu, thanks for the reply.
I was able to make the Interstitial ad animate on by adding a new theme and using that in my Manifest file for the Interstitial activity:
<activity
android:name="com.google.android.gms.ads.AdActivity"
android:theme="@style/MyInterstitialTheme"
tools:replace="android:theme"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>
The only problem is when the ad gets closed, it turns black before it animates down and off the screen. This is not seen on iOS.
Thanks,
Filip