Configuring inputs/props in AWS Cloudformation not working with cscSalt=<SOURCE>

[Psjtech]

Hi,

We have Splunk agent running as a docker container.  We earlier did inputs.conf and props.conf on the splunk container and were ingesting csv file. Everything works smoothly. 

But due to some reasons, we will not be able to make those changes to inputs.conf and props.conf on the splunk container. 

So we added the below config in AWS cloudformation. Our CSV files contains a fixed HEADER as line #1. But unfortunately Splunk ingests the file for the 1st time only and it doesn't ingests subsequent files which contains the same header. Any help on this would be great. Thanks

splunk:
                monitors:
                  - index: "myindex"
                    file: "/path/abc-*.csv"
                    sourcetype: "mysourcetype"
                    crcSalt: "<SOURCE>"
                    DATETIME_CONFIG: "CURRENT"
                    INDEXED_EXTRACTIONS: "csv"
                    KV_MODE: "none"
                    HEADER_FIELD_LINE_NUMBER: "1"
                    FIELD_DELIMITER: ","
                    SHOULD_LINEMERGE: "false"