Logstash created pipeline in Kibana Management doesn't work, while same pipeline work as main

Hi I added netflow pipeline in Kibana Management -> Logstash -> Pipelines

input {                                                                                                                                                                                                                                                                                               
  udp {                                                                                                                                               
    port => 40006                                                                                                                                      
    codec => netflow {                                                                                                                                
      versions => [5, 9]                                                                                                                              
    }                                                                                                                                                 
    type => netflow                                                                                                                                   
  }                                                                                                                                                   
}                                                                                                                                                                                                                                                                                                   

output {
        if ( [type] == "netflow" ) {
                elasticsearch {

                        index => "logstash-netflow-%{host}-%{+YYYY.MM.dd}"
                        hosts    => [ 'elasticsearch' ]
                        user     => 'elastic'
                        password => "${ELASTIC_PASSWORD}" 
                        ssl => true
                        cacert => '/usr/share/logstash/config/certs/ca/ca.crt'

                }
        } else {
                elasticsearch {                        
                        index => "logstash-n-%{type}-%{+YYYY.MM.dd}"
                        hosts    => [ 'elasticsearch' ]
                        user     => 'elastic'
                        password => "${ELASTIC_PASSWORD}" 
                        ssl => true
                        cacert => '/usr/share/logstash/config/certs/ca/ca.crt'                        
                }
        }
}

and it did not work, but the main

input {
  heartbeat {
    interval => 5
    message  => 'Hello from Logstash 💓'
  }
}

output {
  elasticsearch {
    hosts    => [ 'elasticsearch' ]
    user     => 'elastic'
    password => "${ELASTIC_PASSWORD}"  # read password from logstash.keystore
    ssl => true
    cacert => '/usr/share/logstash/config/certs/ca/ca.crt'
  }
}

pipeline did work perfectly. Then I copied content of my pipeline to ./config/logstash/pipeline/logstash.conf. Deleted the pipeline I created in Kibana. Did docker-compose up -d and my pipeline started to work perfectly fine.

What do I need to do to make additional pipelines to work except the main one? Ideally I need to make multiple files ./config/logstash/pipeline/logstash.conf as I want it to be configured just from the docker-compose and avoid as much as possible manual configuration.

elastic / stack-docker

Logstash created pipeline in Kibana Management doesn't work, while same pipeline work as main #78