部署App Engine Flex时突发健康检查超时错误求助

部署App Engine Flex时触发以下错误：

googlecloudsdk.api_lib.app.operations_util.OperationError: Error Response: [4] An internal error occurred while processing task /app-engine-flex/flex_await_healthy/flex_await_healthy>2024-02-11T09:54:47.328Z208.wa.2: Timed out waiting for the app infrastructure to become healthy.

我的yaml配置如下：

runtime: custom
api_version: '1.0'
env: flexible
service: service-name
automatic_scaling:
  min_num_instances: 1
  max_num_instances: 1

resources:
  cpu: 1
  memory_gb: 1
  disk_size_gb: 15

readiness_check:
  app_start_timeout_sec: 1800

beta_settings:
  cloud_sql_instances: sql-instance

vpc_access_connector:
  name: vonnector-name
  egress_setting: all-traffic

network:
  name: network-name

includes:
  - secrets.yaml

已按官方文档确认服务权限无误，尝试过以下排查步骤仍未解决：

• 增大磁盘容量
• 检查IP配额限制
• 删除并重新创建Docker镜像
• 移除yaml中的网络名称、VPC连接器和SQL实例配置
• 使用--verbosity=debug参数部署未获取有效信息
• 移除readiness_check配置

内容的提问来源于stack exchange，提问作者Orestis uRic