Rollover creates index with default shards instead of 1st index shard configuration

Versions (relevant - OpenSearch/Dashboard/Server OS/Browser):
OpenSearch 1.3

Describe the issue:
I have an index associated with a rollover policy that has 1 shard and 1 replica. After policy is executed, a new index -000002 is generated, but with 5 shards and 1 replica

Configuration:

{
    "policy": {
        "policy_id": "email-sender-ms_policy",
        "description": "A policy for email sender rollover and delete",
        "last_updated_time": 1668540938405,
        "schema_version": 14,
        "error_notification": null,
        "default_state": "rollover",
        "states": [
            {
                "name": "rollover",
                "actions": [
                    {
                        "retry": {
                            "count": 3,
                            "backoff": "exponential",
                            "delay": "1m"
                        },
                        "rollover": {
                            "min_size": "100mb"
                        }
                    }
                ],
                "transitions": [
                    {
                        "state_name": "delete",
                        "conditions": {
                            "min_index_age": "7d"
                        }
                    }
                ]
            },
            {
                "name": "delete",
                "actions": [
                    {
                        "retry": {
                            "count": 3,
                            "backoff": "exponential",
                            "delay": "1m"
                        },
                        "delete": {}
                    }
                ],
                "transitions": []
            }
        ],
        "ism_template": [
            {
                "index_patterns": [
                    "email-sender-ms*"
                ],
                "priority": 100,
                "last_updated_time": 1668540938405
            }
        ]
    }
}

Relevant Logs or Screenshots: