I have some image files that mysteriously showed up on the desktop. When I go to move them, they show a copy (+) icon and they are unable to be deleted. When I select either one and press space bar to preview, instead of a preview, the message "No items selected" is displayed.
I also noticed that they do not show up in a regular finder window of the desktop, but only in the desktop itself.
Upon relaunching finder
(CMD+OPT+ESC > Finder > Relaunch), the symptoms vanished.
But does anyone know why this keeps happening? I've seen it multiple times now.