Forge ARKit API问题：提交Job后无法获取Manifest

研究Forge AR Kit多日，目标是在Unity中展示并交互APS(Forge)模型，按官方博客及文档步骤操作后遇到问题，以下是Postman测试的API调用详情：

获取Token #

通过Authentication API v2获取Token：

curl --location --request POST 'https://developer.api.autodesk.com/authentication/v2/token' \
--header 'Accept: application/json' \
--header 'Authorization: Basic {My_Base_Code}' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'grant_type=client_credentials' \
--data-urlencode 'scope=data:read data:write data:create data:search bucket:create bucket:read bucket:update bucket:delete account:read account:write code:all'

创建场景 #

curl --location --request PUT 'https://developer-api-beta.autodesk.io/arkit/v1/dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6dGVzdGJ1Y2tldF8yMDIzMDUyMi90ZXN0MS5ydnQ/scenes/test-scene' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer {My_Token}' \
--data '{
    "prj":{
        "urn":"dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6dGVzdGJ1Y2tldF8yMDIzMDUyMi90ZXN0MS5ydnQ"
    }
}'

收到状态码200的响应：

{
    "prj": {
        "urn": "dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6dGVzdGJ1Y2tldF8yMDIzMDUyMi90ZXN0MS5ydnQ"
    }
}

调用GET /arkit/v1/{urn}/scenes时，响应中包含test-scene。

创建场景资源 #

curl --location --request POST 'developer-api-beta.autodesk.io/modelderivative/v2/arkit/job' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer {My_Token}' \
--data '{
  "input": {
    "urn": "dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6dGVzdGJ1Y2tldF8yMDIzMDUyMi90ZXN0MS5ydnQ"
  },
  "output": {
    "destination": {
      "region": "US"
    },
    "formats": [
      {
        "type": "arkit",
        "scene": "test-scene"
      }
    ]
  }
}'

收到状态码200的空响应体。

检查场景处理状态 #

curl --location --request GET 'developer-api-beta.autodesk.io/modelderivative/v2/arkit/dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6dGVzdGJ1Y2tldF8yMDIzMDUyMi90ZXN0MS5ydnQ/manifest' \
--header 'Authorization: Bearer {My_Token}' \
--header 'Content-Type: application/json'

此处始终收到状态码404的响应，请问是处理未完成还是遗漏了步骤？

内容的提问来源于stack exchange，提问作者TomTomTom