Index Prefix is not working as intended, it is copying all the indices

[gauti251988]

{
"name": "ElasticSourceConnectorConnector_1",
"config": {
"topic.creation.default.partitions": "3",
"topic.creation.default.replication.factor": "2",
"topic.creation.enable": "false",
"name": "ElasticSourceConnectorConnector_1",
"connector.class": "com.github.dariobalinzo.ElasticSourceConnector",
"tasks.max": "1",
"errors.log.enable": "true",
"errors.log.include.messages": "true",
"topic.creation.groups": "",
"es.host": "",
"es.scheme": "https",
"es.port": "",
"es.user": "",
"es.password": "",
"es.tls.keystore.location": "",
"es.tls.keystore.password": "",
"es.tls.truststore.location": "",
"es.tls.truststore.password": "**********",
"index.prefix": ".ds-logs-okta.system-default",
"index.names": "",
"mode": "timestamp",
"incrementing.field.name": "@timestamp",
"batch.max.rows": "100",
"topic.prefix": "ELASTIC_",
"fieldname_converter": "nop"
}
}

I see the curl call for fetching all indices but it doesn't use the prefix to filter the index we are interested in.