"UNKNOWN" Response value on SIPS test sandbox

[trpharove]

Hi, when using https://payment-web.test.sips-services.com/
And using :

        <dependency>
            <groupId>com.worldline.sips</groupId>
            <artifactId>payment-sdk</artifactId>
            <version>1.4.3</version>
        </dependency>
        <dependency>
            <groupId>com.worldline.sips</groupId>
            <artifactId>payment-sdk-common</artifactId>
            <version>1.4.3</version>
        </dependency>

the Paypage client is initialized using Environment.TEST

If you cancel an order without doing anything first, SIPS can send a response containing
...|paymentMeanBrand=UNKNOWN|paymentMeanType=CARD|...
Resulting in an error when calling paypageClient.decodeResponse(sipsResponse).

Cannot deserialize value of type `com.worldline.sips.model.PaymentMeanBrand` from String "UNKNOWN": 
not one of the values accepted for Enum class: [VISA, ELV, MASTERCARD, PAYPAL, IDEAL, CBCONLINE, IGNHOMEPAY, PAYTRAIL, AMEX, MAESTRO, MASTERPASS, SOFORTUBERWEISUNG, BCMC, KBCONLINE, VPAY, CB]
 at [Source: UNKNOWN; line: -1, column: -1] 
(through reference chain: com.worldline.sips.model.ResponseData["paymentMeanBrand"]) 
(through reference chain: com.worldline.sips.model.PaypageResponse["Data"])

UNKNOWN is considered a possible type from https://documentation.sips.worldline.com/en/data-dictionary/paymentmeanbrand.html
If I do anything that indicate SIPS that I'm trying to use VISA for example, it's sent correctly on cancel and there are no issues, therefore I'm wondering if either payment-sdk or payment-sdk-common is missing anything about this case.

Do you have any idea why this is occuring or any way to fix this ?