Intermittently won't let me edit a bookmark. Can see the bookmark, can click the pencil icon, but won't let me edit the bookmark. Just when I gave up on cyberduck from the frustration, downloaded Transmit, then came back to Cyberduck (not sure why I did, just experiment) then the edit feature worked. I'd thought I was doing something wrong, but apparently it was fixed with a quit and relaunch of the program (not a restart of the system).

I've also had a problem where I intermittently can't log on. Get an error message and then I try another 3 or 4 times without changing any settings, and can log in. It's very frustrating and without any confidence in consistency, sort of makes it a little sketchy to say the least. I know it's free...