FileBeat EOF Error

Elastic Stack Beats
5

I checked twice with my domain admin, actually there is no firewall between machines, moreover I am pretty sure there is a continuous data exchange (I can see it from kibana too)

just as example this morning I connected all the logger machines, after the 6th I started getting some errors. Whene LS was warmed only one machine out of 10 continued returning that error every about 15s
I closed everything and changed the config, but nothing changed

yesterday with a smaller LS cluster I arrived at 6 working machines

I improved my LS cluster, now it is using 2 machine
LS yml is the following

path.data: /var/lib/logstash
pipeline.workers: 24
pipeline.output.workers: 1
pipeline.batch.size: 15000
path.config: /etc/logstash/conf.d
config.reload.automatic: true
config.reload.interval: 30
log.level: verbose
path.log: /var/log/logstash/logstash.log

jvm.option is the standard one, I only changed

-Xms12g
-Xmx12g

FB conf is the following

filebeat.prospectors:
 - input_type: log

  paths:
    - d:Logger\1
  exclude_lines: ["^\\s*$"]
  include_lines: ["^([a-z]|[A-Z])"]
  fields:
    catena: 11
  fields_under_root: true
  ignore_older: 10m
  close_inactive: 2m
  clean_inactive: 15m
  document_type: log1
  
- input_type: log

  paths:
    - d:Logger\2
  exclude_lines: ["^\\s*$"]
  include_lines: ["^([a-z]|[A-Z])"]
  fields:
    catena: 11
  fields_under_root: true
  ignore_older: 10m
  close_inactive: 2m
  clean_inactive: 15m
  document_type: log2
  
- input_type: log

  paths:
    - d:Logger\3
  exclude_lines: ["^\\s*$"]
  include_lines: ["^([a-z]|[A-Z])"]
  fields:
    catena: 11
  fields_under_root: true
  ignore_older: 10m
  close_inactive: 2m
  clean_inactive: 15m
  document_type: log3
  
- input_type: log

  paths:
    - d:Logger\4
  exclude_lines: ["^\\s*$"]
  include_lines: ["^([a-z]|[A-Z])"]
  fields:
    catena: 11
  fields_under_root: true
  ignore_older: 10m
  close_inactive: 2m
  clean_inactive: 15m
  document_type: log4
  
- input_type: log

  paths:
    - d:Logger\5
  exclude_lines: ["^\\s*$"]
  include_lines: ["^([a-z]|[A-Z])"]
  fields:
    catena: 11
  fields_under_root: true
  ignore_older: 10m
  close_inactive: 2m
  clean_inactive: 15m
  document_type: log5
  
- input_type: log

  paths:
    - d:Logger\6
  exclude_lines: ["^\\s*$"]
  include_lines: ["^([a-z]|[A-Z])"]
  fields:
    catena: 11
  fields_under_root: true
  ignore_older: 10m
  close_inactive: 2m
  clean_inactive: 15m
  document_type: log6
  
- input_type: log

  paths:
    - d:Logger\7
  exclude_lines: ["^\\s*$"]
  include_lines: ["^([a-z]|[A-Z])"]
  fields:
    catena: 11
  fields_under_root: true
  ignore_older: 10m
  close_inactive: 2m
  clean_inactive: 15m
  document_type: log7
  
#========================= Filebeat global options ============================

filebeat.spool_size: 10000
filebeat.idle_timeout: 10s

#----------------------------- Logstash output --------------------------------
output.logstash:
  hosts: ["10.246.85.242:5044", "10.246.85.243:5044"]
  template.name: "filebeat"
  loadbalance: true
  bulk_max_size: 1000  
  template.path: "filebeat.template.json"
  template.overwrite: false