error parsing log message with parser 'syslog-rfc3164'

[edwio]

I have Fluent Bit (aws-for-fluent-bit:2.28.4) deployed as DaemonSet in AWS EKS, with the following pipeline:

    [SERVICE]
        Parsers_File /fluent-bit/parsers/parsers.conf

    [INPUT]
        Name     syslog
        Tag      prod_syslog
        Parser   syslog-rfc3164
        Listen   0.0.0.0
        Port     5140
        Mode     tcp
        
    [OUTPUT]
        Name                  cloudwatch_logs
        Match                 prod_syslog
        region                eu-west-1
        log_group_name        prod-eks-syslog
        log_stream_name       syslog-messages
        log_retention_days    30
        auto_create_group     true

The pipeline above is configuring Fluent Bit to listen to syslog messages from ANY IP address in port TCP:5140, to be parsed with RFC 3164 syslog protocol.
And to save the received syslog messages, in an AWS CloudWatch Log Group named: "prod-eks-syslog".
I can confirm that Fluent Bit is acknowledging syslog messages,
But for some reason, no syslog messages is being written to the AWS CloudWatch Log Group.
While troubleshooting the problem, I've noticed the following errors in the Fluent Bit pod logs:

[2024/10/28 10:25:55] [ warn] [input:syslog:syslog.0] error parsing log message with parser 'syslog-rfc3164
[2024/10/28 10:25:55] [ warn] [parser:syslog-rfc3164] invalid time format %b %d %H:%M:%S for ' Oct 28'
[2024/10/28 10:25:56] [ info] [output:cloudwatch_logs:cloudwatch_logs.0] Creating log stream syslog-messages in log group prod-eks-syslog

I understand from the errors above, that the parser expects a valid time format, but I don't understand why.
As the application that sends the actual syslog messages, it also works with the RFC 3164 syslog protocol.

How can i continue troubleshooting this problem?
Are there any Kubectl or Fluent-Bit/Logger commands, to inspect the incoming syslog-messages before they are being ingested to the Pipeline?