SFTP Source Connector Issue

Hi Team,
I am using SFTP Source Connector with below configurations, MOVE cleanup policy is not working for me.Connector is pushing files to topic but not moving the files to done directory.Am I missing something?

Kindly help below are my configurations.

  "name": "BinaryFileServerSftp_Test2",
  "config": {
    "connector.class": "io.confluent.connect.sftp.SftpBinaryFileSourceConnector",
    "tasks.max": "1",
    "value.converter": "org.apache.kafka.connect.converters.ByteArrayConverter",
    "errors.log.enable": "true",
    "errors.log.include.messages": "true",
    "sftp.host": "XXXXXX",
    "sftp.port": "22",
    "sftp.username": "XXXXX",
    "sftp.password": "XXXXXX",
    "kafka.topic": "sftp-server-binary-file-topic-Test2",
    "empty.poll.wait.ms": "2000",
    "input.path": "/C/Users/data",
    "finished.path": "/C/Users/done",
    "error.path": "/C/Users/error",
    "cleanup.policy": "MOVE",
    "input.file.pattern": ".*\\.pdf",
    "behavior.on.error": "FAIL",
    "file.minimum.age.ms": "1000"

Any help on this, Is it a bug in “SftpBinaryFileSourceConnector”?