@Jeremy: I followed this ticket a while. As I've written in duplicate ticket https://bugs.launchpad.net/pantheon-files/+bug/1623649, mounting SSH folders with gfvs-mount works, but it works not in pantheon-files (which uses gfvs, correct me if I'm wrong). So I don't thinks that this is just a connection issue.
@Jeremy: I followed this ticket a while. As I've written in duplicate ticket https:/ /bugs.launchpad .net/pantheon- files/+ bug/1623649, mounting SSH folders with gfvs-mount works, but it works not in pantheon-files (which uses gfvs, correct me if I'm wrong). So I don't thinks that this is just a connection issue.