FileBeat Setup Error : Payload content length greater than maximum allowed: 1048576 - elasticsearch

Question

We are working to capture logs from server to elasticsearch by filebeat.
We are getting below issue, while setup the filebeat.
Response: {"statusCode":413,"error":"Request Entity Too Large","message":"Payload content length greater than maximum allowed: 1048576"}
We have added http.max_content_length: 1200mb in elasticsearch.yml and server.maxPayloadBytes: 26214400 in kibana.yml. Still this issue is there.
How to resolve this issue?
Here is the YML files we are using for FileBeat, ElasticSearch & Kibana
FileBeat.yml
filebeat.inputs:
type: log
enabled: true
paths:
c:\logs\XXX*
type: filestream
enabled: false
paths:
/var/log/*.log
filebeat.config.modules:
path: ${path.config}/modules.d/*.yml
reload.enabled: false
setup.template.settings:
index.number_of_shards: 1
setup.kibana:
host: "0.0.0.0:0000"
username: "XXXX"
password: "XXXX"
output.elasticsearch:
hosts: ["0.0.0.0:0000"]
username: "XXXX"
password: "XXXX"
processors:
add_host_metadata:
when.not.contains.tags: forwarded
add_cloud_metadata: ~
add_docker_metadata: ~
add_kubernetes_metadata: ~
ElasticSearch.yml
module: elasticsearch
server:
enabled: true
gc:
enabled: true
audit:
enabled: true
slowlog:
enabled: true
deprecation:
enabled: true
access:
var.paths: ["/var/logs/XXX/XXX.log"]
http.max_content_length: 1200mb
Kibana.yml
module: kibana
log:
enabled: true
audit:
enabled: true
server.maxPayloadBytes: 26214400