Skip Forbidden Files (Fault tolerance is not working as expected)

1) I am using a simple copy activity to load files from on-prem sftp server location ( wild card path) to ADLSGen-2 .

2) I enabled all options in Fault tolerance like "skip forbidden files, skip missing files, skip files with invalid names ) but still my copy activity failing with below error :

 ErrorMessage:ErrorCode=SftpPermissionDenied,'Type=Microsoft.DataTransfer.Common.Shared.HybridDeliveryException,Message=Permission denied to access '/local/data1/edw/bin/nohup.out'.,Source=Microsoft.DataTransfer.ClientLibrary.SftpConnector,''Type=Renci.SshNet.Common.SftpPermissionDeniedException,Message=Permission denied,Source=Renci.SshNet,'