Incorrect credit card autofill on securepay.simplepay.hu

Expiry year is filled into the card number field, and expiry date field is not filled.
I cannot give an example URL as it contains the payment ID, but here's the page structure:

{
    "unparsedUrl": "https://securepay.simplepay.hu/pay/pay/pspHU/REDACTED",
    "title": "SimplePay",
    "frames": [
        {
            "fields": [
                {
                    "autocompleteType": "off",
                    "formOpid": 2,
                    "htmlId": "cardNo",
                    "htmlName": "simpleCardNo",
                    "htmlClass": "cardinput cardnumber error",
                    "isActive": true,
                    "isUserEdited": true,
                    "maxLength": 23,
                    "opid": 25,
                    "placeholder": "Kártyaszám",
                    "type": "text",
                    "labelAria": "Kártyaszám",
                    "labelAfter": "hibás kártyaszám"
                },
                {
                    "autocompleteType": "off",
                    "formOpid": 2,
                    "htmlId": "cardHolder",
                    "htmlName": "simpleCardHolder",
                    "htmlClass": "cardinput cardholder",
                    "isUserEdited": true,
                    "autofilledBy": "us",
                    "maxLength": 32,
                    "opid": 26,
                    "placeholder": "Kártyára írt név",
                    "type": "text",
                    "labelAria": "Kártyára írt név",
                    "labelBefore": "hibás kártyaszám"
                },
                {
                    "autocompleteType": "new-password",
                    "formOpid": 2,
                    "htmlId": "cardExp",
                    "htmlName": "simpleCardExp",
                    "htmlClass": "pwdField cardinput cardexpiration error",
                    "maxLength": 5,
                    "opid": 27,
                    "placeholder": "HH/ÉÉ",
                    "type": "text",
                    "labelAria": "Lejárati dátum",
                    "labelAfter": "hibás lejárat"
                },
                {
                    "autocompleteType": "new-password",
                    "formOpid": 2,
                    "htmlId": "cardCvc",
                    "htmlName": "simpleCardCvc",
                    "htmlClass": "pwdField cardinput cardcvc",
                    "isUserEdited": true,
                    "maxLength": 4,
                    "opid": 28,
                    "placeholder": "CVC/CVV kód",
                    "type": "password",
                    "labelAria": "CVC/CVV kód",
                    "labelBefore": "hibás lejárat"
                }
            ],
            "forms": [
                {
                    "opid": 0
                },
                {
                    "opid": 1
                },
                {
                    "htmlAction": "https://securepay.simplepay.hu/pay/pay/pspHU/REDACTED",
                    "htmlId": "payForm",
                    "opid": 2,
                    "textContent": "hibás kártyaszám hibás lejárat"
                },
                {
                    "opid": 3
                }
            ],
            "origin": "https://securepay.simplepay.hu",
            "title": "SimplePay",
            "pathName": "/pay/pay/pspHU/REDACTED",
            "uuid": "kvm25c"
        }
    ]

1Password Version: 8.7.0
Extension Version: 2.3.6
OS Version: Ubuntu 22.04
Browser: Chrome 103

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