Filebeat BeatUUID repeat

[ZMMWMY]

version : 6.2.3
docker : 17.06.2-ce
i create two filebeat container on diff server ,when i look logs. i find BeatUUID is same.then i use kibana monitoring .only one instance , i click the instance . the instance detail can change
filebeat.yml

filebeat.config.prospectors:
  enabled: true
  path: service/*.yml
  reload.enabled: true
  reload.period: 10s
output.logstash:
  hosts: 

spool_size: 256
idle_timeout: "5s"

#x-pack
xpack.monitoring:
  enabled: true
  elasticsearch:
    hosts: 
    username: 
    password: 
logging.level: info
logging.to_files: true
logging.to_syslog: false
logging.files:
  path: /usr/share/filebeat/logs/
  name: filebeat.log
  keepfiles: 7
processors:
- drop_fields:
    fields: ["input_type", "beat", "offset", "source"]

log

2018-05-03T07:39:13.980Z	INFO	[monitoring]	log/log.go:133	Uptime: 16m47.756701522s
2018-05-03T07:39:13.980Z	INFO	[monitoring]	log/log.go:110	Stopping metrics logging.
2018-05-03T07:39:15.315Z	INFO	instance/beat.go:468	Home path: [/usr/share/filebeat] Config path: [/usr/share/filebeat] Data path: [/usr/share/filebeat/data] Logs path: [/usr/share/filebeat/logs]
2018-05-03T07:39:15.315Z	INFO	instance/beat.go:475	Beat UUID: 288767ee-faa1-4668-aab7-dd192ea68330
2018-05-03T07:39:15.315Z	INFO	instance/beat.go:213	Setup Beat: filebeat; Version: 6.2.3
2018-05-03T07:39:15.317Z	INFO	pipeline/module.go:76	Beat name: e822d59df0be

another log

|2018-05-03T07:43:19.779Z|INFO|instance/beat.go:468|Home path: [/usr/share/filebeat] Config path: [/usr/share/filebeat] Data path: [/usr/share/filebeat/data] Logs path: [/usr/share/filebeat/logs]|
|---|---|---|---|
|2018-05-03T07:43:19.779Z|INFO|instance/beat.go:475|Beat UUID: 288767ee-faa1-4668-aab7-dd192ea68330|
|2018-05-03T07:43:19.779Z|INFO|instance/beat.go:213|Setup Beat: filebeat; Version: 6.2.3|
|2018-05-03T07:43:19.780Z|INFO|pipeline/module.go:76|Beat name: 932b97e51f90|

[ZMMWMY]

oh i make a mistake . i copy a meta.json.
detail