Comment 4 for bug 1869897

The same problem with ssh PAM OATH and Gnome Shell 3.28.4

Via ssh no problem, via "Gnome File" filemanager gui using "sftp://user@192.168.88.250:22/home/user" no any window to ask the one time secret key, and the process fails.

sftp://vage@192.168.88.250:22/home/vage

Jul 26 18:42:16 localhost dbus-daemon[1155]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Jul 26 18:42:16 localhost NetworkManager[1207]: <info> [1595781736.3070] dhcp4 (eth1): nameserver '208.67.220.220'
Jul 26 18:42:16 localhost nm-dispatcher: req:1 'dhcp4-change' [eth1]: new request (1 scripts)
Jul 26 18:42:16 localhost NetworkManager[1207]: <info> [1595781736.3071] dhcp4 (eth1): state changed bound -> bound
Jul 26 18:42:16 localhost nm-dispatcher: req:1 'dhcp4-change' [eth1]: start running ordered scripts...
Jul 26 18:42:16 localhost systemd[1]: Starting Network Manager Script Dispatcher Service...
Jul 26 18:42:16 localhost systemd[1]: Started Network Manager Script Dispatcher Service.

If request I can try from a newer OS.