Shopware6订单状态转换API首次调用报500但状态已更新，二次调用正常

我们的Shopware 6 DemoStore（版本6.4.15.0）在调用订单状态转换API时出现异常：

• 首次调用API返回500内部错误，但后台管理面板显示订单状态已成功更新
• 第二次调用同一接口则返回200正常响应
• 已尝试多种集成方式，甚至使用Admin权限，问题依然存在
• 此前未出现该问题，怀疑是DemoStore近期更新导致

首次调用（返回500错误，但订单状态已更新） #

请求：

POST /api/_action/order/1fa508dcfbcf4fa2ae17a880708d5c4b/state/process

响应：

{
    "errors": [
        {
            "code": "0",
            "status": "500",
            "title": "Internal Server Error",
            "detail": "Could not find order context with referenced_order_id \"1fa508dcfbcf4fa2ae17a880708d5c4b\"."
        }
    ]
}

第二次调用（返回200正常响应） #

请求：

POST /api/_action/order/1fa508dcfbcf4fa2ae17a880708d5c4b/state/process

响应：

{
    "name": "In Bearbeitung",
    "technicalName": "in_progress",
    "stateMachineId": "829e4b7329d648e3af48c87bf3838b9b",
    "stateMachine": null,
    "fromStateMachineTransitions": null,
    "toStateMachineTransitions": null,
    "translations": null,
    "orders": null,
    "orderTransactionCaptures": null,
    "orderTransactionCaptureRefunds": null,
    "orderTransactions": null,
    "orderDeliveries": null,
    "fromStateMachineHistoryEntries": null,
    "toStateMachineHistoryEntries": null,
    "_uniqueIdentifier": "aa16871f5106458c82cc72c5aba45873",
    "versionId": null,
    "translated": {
        "name": "In Bearbeitung",
        "customFields": []
    },
    "createdAt": "2022-04-15T10:14:05.167+00:00",
    "updatedAt": null,
    "extensions": {
        "foreignKeys": {
            "apiAlias": null,
            "extensions": []
        }
    },
    "id": "aa16871f5106458c82cc72c5aba45873",
    "customFields": null
}

内容的提问来源于stack exchange，提问作者alesc