调用 条件查询批次列表API

https://api.mch.weixin.qq.com/v3/marketing/favor/stocks

头信息

WECHATPAY2-SHA256-RSA2048 mchid="48457082",nonce_str="WBEE6W1ZKR3ST1RRPAPWR1V7JDOHB6D1",signature="UnujrktmDFNMtrj/Z8k99xphDKFQpBupFc5cb3sUKKH8U+9DUaPyJFJLfwVkx6QUbj025CUpD7emCOh8i5dZGzTcYRvtEXynDML+lyKfvkpVrHZEKOcVAE1cH9GmqFl6GgxmFCknUCA+ys4LgLXo+JHZAiVM8xzEraMtHmOk3ukQAeg02VWLdruJozx1+ZUpT88xdqUk2QONjGnJhZZNWnz9rnye5iTnvCuV4WWhfwUUlWKe+o4SVLhaAbWgQFVvEjhazSAgulKutWV0bsthh2IhbpfvkBgyrflPWSN0VP9uNUYVcZpbtFhjztEl0TeMKIwuTSpW65NbIOL1YSSleQ==",timestamp="1694231093",serial_no="178A62589F166AF6D0DDD3F5A9EC2AE197367BA2"

返回

{

    "code": "SIGN_ERROR",

    "detail": {

        "detail": {

            "issue": "sign not match"

        },

        "field": "signature",

        "location": "authorization",

        "sign_information": {

            "method": "GET",

            "sign_message_length": 66,

            "truncated_sign_message": "GET\n/v3/certificates\n1694231093\nWBEE6W1ZKR3ST1RRPAPWR1V7JDOHB6D1\n\n",

            "url": "/v3/certificates"

        }

    },

    "message": "错误的签名，验签失败"

}

以前一直没有问题，今天突然调不通了，证书状态正常，证书和商户号也匹配。

有大神知道是什么原因吗