filebeat采集数据_source.@timestamp慢八小时

软件版本：7.15.0
运行环境：CentOS 7.8.2003，Docker version 20.10.6。
场景/上下文：配置filebeat输入容器日志输出到ES，但是发现0点没有创建新的索引，经排查发现文档中_source.@timestamp这个字段的时间慢八小时（截图所示）。请问有人遇到过这个问题，都是怎么解决的。
 
filebeat.yml配置文件内容如下：

# ============================== Filebeat inputs ===============================

filebeat.inputs:

- type: container

  enabled: true

  paths:

     - '/var/lib/docker/containers/*/*.log'

# ============================== Filebeat modules ==============================



filebeat.config.modules:

  path: ${path.config}/modules.d/*.yml

  reload.enabled: false



# ======================= Elasticsearch template setting =======================



setup.template.settings:

  index.number_of_shards: 1

setup.template.name: "abcd"

setup.template.pattern: "abcd-*"

setup.ilm.enabled: false





# =================================== Kibana ===================================



# Starting with Beats version 6.0.0, the dashboards are loaded via the Kibana API.

# This requires a Kibana endpoint configuration.

setup.kibana:





# ================================== Outputs ===================================



# Configure what output to use when sending the data collected by the beat.



# ---------------------------- Elasticsearch Output ----------------------------

output.elasticsearch:

  # Array of hosts to connect to.

  hosts: ["10.10.10.10:9200"]



  username: "elastic"

  password: "changeme"

  index: "abcd-%{[agent.version]}-%{+yyyy.MM.dd}"



# ================================= Processors =================================

processors:

  - add_host_metadata:

      when.not.contains.tags: forwarded

  - add_cloud_metadata: ~

  - add_docker_metadata: ~

  - add_kubernetes_metadata: ~