Paypal Checkout SDK - immediate payment - php

Question

I need to use Paypal checkout in order to accept immediate payment on my Laravel website, and I switched from old Paypal PHP SDK to the new Paypal checkout SDK to support API V2.
I followed the samples codes that provided in the new SDK, I have to create all workflow on my server, so I created an order with intent=CAPTURE with other required fields.
$request = new OrdersCreateRequest();
$request->headers["prefer"] = "return=representation";
$request->body = $this->buildMinimumRequestBody(...);
$response = $this->client->execute($request);
// redirect the user to approval link.
Order body:
return array(
'intent' => 'CAPTURE',
'application_context' =>
array(
'return_url' => 'https://example.com/return',
'cancel_url' => 'https://example.com/cancel',
'locale' => 'en-US',
'user_action' => 'PAY_NOW',
'shipping_preference'=> 'NO_SHIPPING'
),
'purchase_units' =>
array(
0 =>
array(
'amount' =>
array(
'currency_code' => 'USD',
'value' => 12,
'breakdown' =>
array(
'item_total' =>
array(
'currency_code' => 'USD',
'value' => 10,
),
'tax_total' =>
array(
'currency_code' => 'USD',
'value' => 2,
),
),
),
),
),
);
After the user redirected to approval URL and approving it, I execute the payment like below:
$response = $this->client->execute(new OrdersCaptureRequest($payment_id));
Below is the response after executing the payment.
Order and Payment response
So after directing the user to the approval page, then after approving the payment, then executing the order, I got the above result in the attached screenshot which shows the Order status is completed but the payment status is still "pending" and the reason is "PENDING_REVIEW", so I would like to ask if there is any error or something missed to make the payment immediately without waiting for review with an example.
Thanks.