Android: Twint Redirect Back to the App doesn't work

[msio]

Hi,

We can't get done returning from Twint App back to our App after the payment in the Twint app was confirmed in Android.
Tested on Sandbox

SDK Version: 3.6.1.

Our Java Code

Transaction transaction = new Transaction(mobileToken);
transaction.getOptions().setTesting(true);
transaction.getOptions().setAppCallbackScheme("com.example.payment");
TransactionRegistry.INSTANCE.startTransaction(this, transaction);

AndroidManifest.xml

<activity android:name="ch.datatrans.payment.ExternalProcessRelayActivity"
                android:launchMode="singleTask"
                android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />
                <data android:scheme="com.example.payment" />
            </intent-filter>
</activity>

The configuration above works with Paypal payment without hassle.

Twint Config - Version 38.0.0.46

Twint Configurable - Version 48.0.0.8

I also tried your Showcase https://play.google.com/store/apps/details?id=ch.datatrans.mobilesdkshowcase&hl=en and it doesn't work either unfortunatelly

Many Thanks

Cheers Michal :-)