cybersource Payment Gateway not able to decrypt paymenttoken

Cybersource production support has clarified issue as below

"On the BAD Case, it seems that the Apple Payload did not contain the "onlinePaymentCryptogram" object within the JSON. The Cryptogram is critical and mandatory. Since the merchant cannot really control this, and since CYBS is just decrypting the payload and uses it, we cannot comment as to why it was missing. The merchant would need to reach out to Apple and/or decrypt the payment themselves locally to check if and why this data was not present, for troubleshooting purposes."