Cannot use a payment_method_nonce more than once BUT Transaction went through

General information

SDK/Library version: 3.3.0
Environment: Sandbox
Android Version and Device: Vivo Y3 with Android 6.1

Issue description:

Credit and Debit payment is working fine but payment via paypal is throwing me this: "Braintree\Result\Error[errors=[Braintree\Error\ValidationErrorCollection/errors:[( )]], params=transaction=type=sale, amount=99, paymentMethodNonce=69bf1023-ca71-0b65-698c-daa1416a3e66, options=submitForSettlement=true, message=Cannot use a payment_method_nonce more than once., creditCardVerification=, transaction=, subscription=, merchantAccount=, verification=]"

Paypal sandbox and Braintree sandbox shows that the transaction went through: https://drive.google.com/file/d/1naZB-TqvUG9eeHkzshs7zYjrTN8Q0E8x/view?usp=sharing https://drive.google.com/file/d/1WXyp55zxrP4GMmZWPJnQWRhnxWV9w8B3/view?usp=sharing

Also, I've recorded the nonce for the last 2 transaction and it shows that they're completely different to each other: Transaction 1: cabb5b89-db44-0937-5fca-b36f5e6c8764 Transaction 2: b2026353-6edd-07c6-630b-b6b6eca87dab

I've added this on my manifest: <activity android:name="com.braintreepayments.api.BraintreeBrowserSwitchActivity" android:launchMode="singleTask">

    </activity>

OnActivityResult: if (requestCode == REQUEST_CODE){ if (resultCode == RESULT_OK){ DropInResult result = data.getParcelableExtra(DropInResult.EXTRA_DROP_IN_RESULT); PaymentMethodNonce nonce = result.getPaymentMethodNonce(); String strNonce = nonce.getNonce();

            if(!edt_amount.getText().toString().isEmpty()){
                amount = edt_amount.getText().toString();
                paramsHash = new HashMap<>();
                paramsHash.put("amount",amount);
                paramsHash.put("nonce",strNonce);

                sendPayments();
            }
        }

How I send the nonce back to the server: RequestQueue queue = Volley.newRequestQueue(PaymentActivity.this); StringRequest stringRequest = new StringRequest(Request.Method.POST, API_CHECK_OUT, new Response.Listener() { @Override public void onResponse(String response) { if (response.contains("Successful")){ Toast.makeText(PaymentActivity.this, "Transacton successful!", Toast.LENGTH_SHORT).show(); } else{ Toast.makeText(PaymentActivity.this, "Transaction Failed", Toast.LENGTH_SHORT).show(); }

braintree / braintree-android-drop-in

Cannot use a payment_method_nonce more than once BUT Transaction went through #112

General information

Issue description: