Hi,   I'm trying to get data from an SFTP server. The recommended pattern from articles I have read suggest ListFTP to Remote Process Group, Input Port to FetchSFTP. I'm accessing Nifi on a local instance (localhost:9090/nifi).   After adding a RPG to the canvas as well as an input port, I get the error "Connection refused on the RPG" and "'http://localhost:9090/nifi/' does not have any input ports." when I try connect ListFTP to the Remote Process Group.   ... View more