This seems to only happen to me after a period of inactivity, as i've only seen the dock disappear after logging back in from the lock screen. I can't reproduce it, other than to say it happens about once every week or two.
My go-to solution was to log out and log in again, though I can confirm that Yeou Sunn's workaround of "alt+f2" and "r" works. I'll be doing that for now until a fix is found.
This seems to only happen to me after a period of inactivity, as i've only seen the dock disappear after logging back in from the lock screen. I can't reproduce it, other than to say it happens about once every week or two.
My go-to solution was to log out and log in again, though I can confirm that Yeou Sunn's workaround of "alt+f2" and "r" works. I'll be doing that for now until a fix is found.