I was reading a pdf and wanted to save the contents on the desktop. I did the save, and had confirmation.
But the desktop did not show the new files.
I went to command line and saw them there. Gnome was not being advised, or Gnome was failing to be advised by the PDF reader.
When I logged off and returned, Gnome picked up the total of the files on the desktop.
So.. What to do. I will advise Adobe too.