Syslog cef + logstash + security device logs parsing issues

Hello , 
I'm beginning with logstash, I need a help to understand why CEF logs sent by security equipment are not parsed correctly. 
I am using the filter below but some fields are not named correctly.
here is an sample log  

 Jul 23 15:07:35 my_host CEF:0|NETSCOUT|Arbor Edge Defense|6.3.0|ATLAS Threat Categories|Blocked Host|7|rt=1563894450000 src=203.0.113.5 cs3Label=Match Type dpt=53 cn2=134 proto=UDP dst=192.0.2.1 cn1=6971382 spt=45292 cs2Label=Protection Group Name cs1Label=IOC Pattern cn1Label=Element Id cn2Label=Protection Group ID cs7Label=Threat Category cs7=Malware cs6=Simda cs1=qekynuq.com cs6Label=Threat Name cs3=dns cs2=Drifts Protection Group

below the pipeline used 
    indent preformatted text by 4 spaces 

input {

  udp {
    #codec => cef { delimiter => "\r\n"}
    port => 10914
    type => syslog
    tags => ["LOGS-UDP"]
    codec => cef
  }
}
filter {
 # Filter only CEF logs here
 if [type] == "CEF" {
    # Manipulate the message
    mutate {
         # Saved the original message into a temporary field
         add_field => { "tmp_message" => "%{message}" }
         # splits message on the "|"  and has index numbers
         split => ["message", "|"]
         # generate fields for the CEF header
         add_field => { "cef_version" => "%{message[0]}" }
         add_field => { "cef_device_vendor" => "%{message[1]}" }
         add_field => { "cef_device_product" => "%{message[2]}" }
         add_field => { "cef_device_version" => "%{message[3]}" }
         add_field => { "cef_sig_id" => "%{message[4]}" }
         add_field => { "cef_sig_name" => "%{message[5]}" }
         add_field => { "cef_sig_severity" => "%{message[6]}" }
    }
    # Parse the message with field=value formats
    kv {
        # Note: values with spaces are lost (still getting there)
         field_split => " "
         trim_key => "<>\[\],"
         trim_value => "<>\[\],"
         # Only included the fields which are of interest (dont need everything)
         include_keys => [ "cat","act","proto","dst","dpt","src","spt","cn1","cs1","cs2","cs3","cs4","cs5","cs6","cs7" ]
    }
    
     }
    mutate {
        # Rename fields to cef_field_names
        rename => [ "cat",    "cef_traffic_category"]
        rename => [ "act",    "cef_traffic_action"]
        rename => [ "proto",  "cef_traffic_proto"]
        rename => [ "dst",    "cef_traffic_dst_ip"]
        rename => [ "dpt",    "cef_traffic_dst_port"]
        rename => [ "src",    "cef_traffic_src_ip"]
        rename => [ "spt",    "cef_traffic_src_port"]
        rename => ["cn1",     "Element_ID"]
        rename => ["cs1",     "IOC_Pattern" ]
        rename => ["cs2",     "Protection_Group_Name" ]
        rename => ["cs3",     "Match_Type" ]
        rename => ["cs4",     "TAXII_Collection_ID" ]
        rename => ["cs5",     "TAXII_Collection_Title" ]
        rename => ["cs6",     "Threat_name" ]
        rename => ["cs7",     "Threat_Category" ]
        # Revert original message and remove temporary field
        replace => { "message" => "%{tmp_message}" }
        remove_field => [ "tmp_message" ]
    }
  }
}

output {
      elasticsearch {
                index => "cef-aed%{+YYYY.MM.dd}"
                hosts => ["https://es01:9200"]
                ssl => true
                ssl_certificate_verification => false
                cacert => "/usr/share/logstash/certs/ca/ca.crt"
                manage_template => true
                user => "elastic"
                password  => "${ELASTIC_PASSWORD}"
        }
}

example of output

 "transportProtocol" => "UDP",
                        "host" => "1.2.2.2",
                    "@version" => "1",
                  "cefVersion" => "0",
         "deviceCustomNumber2" => "280",
                        "type" => "syslog",
          **"deviceEventClassId" => "Filter List",**
               "sourceAddress" => "1.1.1.1",
                "deviceVendor" => "NETSCOUT",
                 **"deviceCustom2" => "TEST-PG",**
                  "@timestamp" => 2021-02-09T14:12:34.731Z,
             "destinationPort" => "3389",
                  "sourcePort" => "47274",
          "destinationAddress" => "1.1.1.1",
                    "severity" => "5",
           "deviceReceiptTime" => "1612879950000",
               "deviceProduct" => "Arbor Edge Defense",
                        "name" => "Blocked Host",
                      "syslog" => "<25>Feb  9 15:12:34 DEVICE-01",
    **"deviceCustom2Label" => "Protection Group Name",**
    **"deviceCustomNumber2Label" => "Protection Group ID",**
               "deviceVersion" => "6.4.1",
                        "tags" => [[0] "LOGS-UDP"]

As you can see some field dont have the correct name .  I was expected to the field formated like below 

cn1: Element_ID => deviceCustomNumber1 => Long
cs1: IOC_Pattern => deviceCustomString1 => String 
cn2: Protection_Group_ID => deviceCustomNumber2 =>Long
cs2: Protection_Group_Name => deviceCustomString2 => String 
cs3: Match_Type => deviceCustomString3 => String
cs4: TAXII_Collection_ID => deviceCustomString4 => String
cs5: TAXII_Collection_Title => deviceCustomString5 => String
cs6: Threat_Name => deviceCustomString6 => String
cs7: Threat_Category =>  deviceCustomString7 => String

1- I want to be sure that everything will be parsed without issue 
2- modify the name of the customs CEF field 

Regards