[AlphaCommerceHub] The 3D Secure scenario is broken again since 2017-12-14: «Request failed, technical error»

1. The response to POST https://hubuat.alphacommercehub.com.au/pp/3dsecure

{
	"Result": {
		"ResponseCode": "1003",
		"ResponseMessage": "Request failed, technical error",
		"ResponseTimestamp": "14122017092504",
		"MerchantID": "ANTERIOR001",
		"MerchantTxnID": "1214R.783",
		"PaymentID": "Request failed, technical error",
		"Currency": "AUD",
		"Amount": "169000",
		"BillCurrency": "107157391",
		"BillAmount": null,
		"CardHolder": null,
		"CardType": null,
		"Custom1": null,
		"Custom2": null,
		"Custom3": null,
		"Custom4": null,
		"Custom5": null
	},
	"ProviderResps": [
		{
			"ProviderName": "ThreeDSecure",
			"ProviderOrder": "1",
			"ProviderResponse": null,
			"ProviderReference": null,
			"ResponseCode": "1003",
			"ResponseTimestamp": "14122017092504"
		}
	],
	"Country": {
		"CountryName": null,
		"CountryCode": null
	},
	"MethodResult": {
		"AuthCode": null,
		"CVVResult": null,
		"AVSStreetResult": null,
		"AVSZipResult": null,
		"SecureToken": null,
		"Status": null,
		"AmountReceived": null,
		"RedirectUrl": null,
		"FeeAmount": null,
		"Custom1": null,
		"Custom2": null,
		"Custom3": null,
		"Custom4": null,
		"Custom5": null,
		"ACSUrl": null,
		"PAReq": null
	},
	"ThreeDSecure": {
		"AuthenticationValue": null,
		"AuthenticationStatus": null,
		"Enrolled": "U",
		"XID": null,
		"ECI": null,
		"PARes": null,
		"CAVVAlgorithm": null,
		"Custom1": null,
		"Custom2": null,
		"Custom3": null,
		"Custom4": null,
		"Custom5": null
	},
	"TokenResult": {
		"Custom1": null,
		"Custom2": null,
		"Custom3": null,
		"Custom4": null,
		"Custom5": null
	},
	"PaymentInfo": {
		"PaymentBrand": "MASTERCARD",
		"PaymentBrandType": "CREDIT",
		"PaymentBrandCategory": null,
		"PaymentIssuer": null,
		"PaymentIssuerCountry": "US",
		"BIN": "545301"
	},
	"FraudResult": {
		"RiskCategory": null,
		"Score": null,
		"Status": null
	},
	"FraudChecks": [],
	"GeoChecks": [],
	"LoyaltyResult": null
}

2. The initial Magento’s request to AlphaHPP

2.1 Form data

Amount:169000
CancelURL:https://mage2.pro/sandbox/dfe-alphacommercehub
Capture:N
City:Sydney
Country:AU
Currency:AUD
CustomerID:dfediuk@gmail.com
EmailAddress:dfediuk@gmail.com
FraudCheckBypass:N
IPAddress:92.243.166.8
Language:en
MerchantDescriptor:Mage2PRO
MerchantID:ANTERIOR001
MerchantTxnID:1214R.783
Method:CC
OrderDetails[0][ItemAmount]:48000
OrderDetails[0][ItemName]:Alligator Briefcase
OrderDetails[0][ItemQuantity]:2
OrderDetails[0][ItemTaxExempt]:TRUE
OrderDetails[1][ItemAmount]:60000
OrderDetails[1][ItemName]:New Very Prive 41 Black
OrderDetails[1][ItemQuantity]:1
OrderDetails[1][ItemTaxExempt]:TRUE
OrderDetails[2][ItemAmount]:13000
OrderDetails[2][ItemName]:Shipping
OrderDetails[2][ItemQuantity]:1
OrderDetails[2][ItemTaxExempt]:TRUE
SocialID:74041803683
Street1:72 Liverpool St
SuccessURL:https://mage2.pro/sandbox/dfe-alphacommercehub
TelNo:61282688888
TxnDetails:Alligator Briefcase 2 New Very Prive
UserId: <...>
Zip:2000

2.2 Request headers

POST /pp/ac580978-81f0-4716-bfc3-3bc46eab8603 HTTP/1.1
Host: hubuat.alphacommercehub.com.au
Connection: keep-alive
Content-Length: 1061
Pragma: no-cache
Cache-Control: no-cache
Origin: https://mage2.pro
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer: https://mage2.pro/sandbox/checkout/
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,ru;q=0.8
Cookie: <...>

I have got a response from AlphaCommerceHub:

This issue has now been resolved.