Unfortunatelly this SFTP Client shows not all subfolders in some SFTP directories on the cygwin SSH server. Some subfolders are shown without names, what makes it impossible to navigate into them. Another SFTP client works with the same credetials correctly. Buggy version.
Ibarski about FTP OnConnect Free - FTP SFTP FTPS FTPES Client ( FTP / Web Server), v2.0.4