PayPal API が過去の決済履歴を取得できないのはなぜ？

import paypalrestsdk

def pay_and_history():

    # Make Payment
    payment = paypalrestsdk.Payment({
        "intent": "sale",
        "payer": {
            "payment_method": "paypal"},
        "redirect_urls": {
            "return_url": "http://localhost:3000/payment/execute",
            "cancel_url": "http://localhost:3000/"},
        "transactions": [{
            "item_list": {
                "items": [{
                    "name": "item",
                    "sku": "item",
                    "price": "10",
                    "currency": "JPY",
                    "quantity": 1}]},
            "amount": {
                "total": "10",
                "currency": "JPY"},
            "description": "This is the payment transaction description."}]})

    if payment.create():
        print("Payment created successfully")
    else:
        print(payment.error)



    # Get Payment history.
    payment_history = paypalrestsdk.Payment.all({"count": 10})

    print("List Payment:{}".format(len(payment_history.payments)))
    for payment in payment_history.payments:
        print("  -> Payment[%s]" % (payment.id))

        try:
            # Retrieve the payment object by calling the
            # `find` method
            # on the Payment class by passing Payment ID
            payment = paypalrestsdk.Payment.find(payment.id)
            print("Got Payment Details for Payment[%s]" % (payment.id))
            print(payment)

        except ResourceNotFound as error:
            # It will through ResourceNotFound exception if the payment not found
            print("Payment Not Found")


print("App1")
# Authentification & Get Token
paypalrestsdk.configure({
    "mode": "sandbox",  # sandbox or live
    'client_id': '＊＊＊',
    'client_secret': '＊＊＊'})

pay_and_history()



print("App2")
# Authentification & Get Token
paypalrestsdk.configure({
    "mode": "sandbox",  # sandbox or live
    'client_id': '＊＊＊',
    'client_secret': '＊＊＊'})

pay_and_history()

App1
Payment created successfully
List Payment:3
  -> Payment[PAY-4B573760HU7618102LNME4WY]
Got Payment Details for Payment[PAY-4B573760HU7618102LNME4WY]
{'transactions': [{'description': 'This is the payment transaction description.', 'related_resources': [], 'item_list': {'items': [{'price': '10', 'currency': 'JPY', 'quantity': 1, 'sku': 'item', 'name': 'item'}]}, 'amount': {'currency': 'JPY', 'total': '10'}, 'payee': {'merchant_id': 'RZHSU678HRWR8', 'email': 'aaa+b@gmail.com'}}], 'redirect_urls': {'cancel_url': 'http://localhost:3000/', 'return_url': 'http://localhost:3000/payment/execute?paymentId=PAY-4B573760HU7618102LNME4WY'}, 'cart': '8059003180126730N', 'id': 'PAY-4B573760HU7618102LNME4WY', 'create_time': '2018-07-25T10:18:03Z', 'state': 'created', 'links': [{'href': 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-4B573760HU7618102LNME4WY', 'rel': 'self', 'method': 'GET'}, {'href': 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-4B573760HU7618102LNME4WY/execute', 'rel': 'execute', 'method': 'POST'}, {'href': 'https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-8059003180126730N', 'rel': 'approval_url', 'method': 'REDIRECT'}], 'update_time': '2018-07-25T10:18:05Z', 'intent': 'sale'}
  -> Payment[PAY-3JP2876056031781GLNMEXDY]
Got Payment Details for Payment[PAY-3JP2876056031781GLNMEXDY]
{'transactions': [{'description': 'This is the payment transaction description.', 'related_resources': [], 'item_list': {'items': [{'price': '10', 'currency': 'JPY', 'quantity': 1, 'sku': 'item', 'name': 'item'}]}, 'amount': {'currency': 'JPY', 'total': '10'}, 'payee': {'merchant_id': 'RZHSU678HRWR8', 'email': 'aaa+b@gmail.com'}}], 'redirect_urls': {'cancel_url': 'http://localhost:3000/', 'return_url': 'http://localhost:3000/payment/execute?paymentId=PAY-3JP2876056031781GLNMEXDY'}, 'cart': '80M46118JJ147044H', 'id': 'PAY-3JP2876056031781GLNMEXDY', 'create_time': '2018-07-25T10:06:07Z', 'state': 'created', 'links': [{'href': 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-3JP2876056031781GLNMEXDY', 'rel': 'self', 'method': 'GET'}, {'href': 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-3JP2876056031781GLNMEXDY/execute', 'rel': 'execute', 'method': 'POST'}, {'href': 'https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-80M46118JJ147044H', 'rel': 'approval_url', 'method': 'REDIRECT'}], 'update_time': '2018-07-25T10:18:07Z', 'intent': 'sale'}
  -> Payment[PAY-40Y25412PK326360YLNMEW2I]
Got Payment Details for Payment[PAY-40Y25412PK326360YLNMEW2I]
{'transactions': [{'description': 'This is the payment transaction description.', 'related_resources': [], 'item_list': {'items': [{'price': '10', 'currency': 'JPY', 'quantity': 1, 'sku': 'item', 'name': 'item'}]}, 'amount': {'currency': 'JPY', 'total': '10'}, 'payee': {'merchant_id': 'RZHSU678HRWR8', 'email': 'aaa+b@gmail.com'}}], 'redirect_urls': {'cancel_url': 'http://localhost:3000/', 'return_url': 'http://localhost:3000/payment/execute?paymentId=PAY-40Y25412PK326360YLNMEW2I'}, 'cart': '95A06012W9849542P', 'id': 'PAY-40Y25412PK326360YLNMEW2I', 'create_time': '2018-07-25T10:05:29Z', 'state': 'created', 'links': [{'href': 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-40Y25412PK326360YLNMEW2I', 'rel': 'self', 'method': 'GET'}, {'href': 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-40Y25412PK326360YLNMEW2I/execute', 'rel': 'execute', 'method': 'POST'}, {'href': 'https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-95A06012W9849542P', 'rel': 'approval_url', 'method': 'REDIRECT'}], 'update_time': '2018-07-25T10:18:08Z', 'intent': 'sale'}
App2
Payment created successfully
List Payment:2
  -> Payment[PAY-8GK97765YB245513TLNME4YY]
Got Payment Details for Payment[PAY-8GK97765YB245513TLNME4YY]
{'transactions': [{'description': 'This is the payment transaction description.', 'related_resources': [], 'item_list': {'items': [{'price': '10', 'currency': 'JPY', 'quantity': 1, 'sku': 'item', 'name': 'item'}]}, 'amount': {'currency': 'JPY', 'total': '10'}, 'payee': {'merchant_id': 'SCRDP5GD3NSGQ', 'email': 'aaa+c@gmail.com'}}], 'redirect_urls': {'cancel_url': 'http://localhost:3000/', 'return_url': 'http://localhost:3000/payment/execute?paymentId=PAY-8GK97765YB245513TLNME4YY'}, 'cart': '3N278674BD1211813', 'id': 'PAY-8GK97765YB245513TLNME4YY', 'create_time': '2018-07-25T10:18:11Z', 'state': 'created', 'links': [{'href': 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-8GK97765YB245513TLNME4YY', 'rel': 'self', 'method': 'GET'}, {'href': 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-8GK97765YB245513TLNME4YY/execute', 'rel': 'execute', 'method': 'POST'}, {'href': 'https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-3N278674BD1211813', 'rel': 'approval_url', 'method': 'REDIRECT'}], 'update_time': '2018-07-25T10:18:14Z', 'intent': 'sale'}
  -> Payment[PAY-55X1302146393943DLNMEXFQ]
Got Payment Details for Payment[PAY-55X1302146393943DLNMEXFQ]
{'transactions': [{'description': 'This is the payment transaction description.', 'related_resources': [], 'item_list': {'items': [{'price': '10', 'currency': 'JPY', 'quantity': 1, 'sku': 'item', 'name': 'item'}]}, 'amount': {'currency': 'JPY', 'total': '10'}, 'payee': {'merchant_id': 'SCRDP5GD3NSGQ', 'email': 'aaa+c@gmail.com'}}], 'redirect_urls': {'cancel_url': 'http://localhost:3000/', 'return_url': 'http://localhost:3000/payment/execute?paymentId=PAY-55X1302146393943DLNMEXFQ'}, 'cart': '3EP2220770918603W', 'id': 'PAY-55X1302146393943DLNMEXFQ', 'create_time': '2018-07-25T10:06:14Z', 'state': 'created', 'links': [{'href': 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-55X1302146393943DLNMEXFQ', 'rel': 'self', 'method': 'GET'}, {'href': 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-55X1302146393943DLNMEXFQ/execute', 'rel': 'execute', 'method': 'POST'}, {'href': 'https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-3EP2220770918603W', 'rel': 'approval_url', 'method': 'REDIRECT'}], 'update_time': '2018-07-25T10:18:16Z', 'intent': 'sale'}