None of the shortcut keys seem to work. A simple copy/paste or Undo don't do anything anymore. I have the latest Illustrator, I have uninstall and installed using Adobe Creative Cloud. I have reset preferences inside Illustrator. I have deleted Adobe Illustrator Prefs file. Adobe Capture is not existant inside Illustrator anymore. I work only locally. When I start Illustrator I get an error message "The operation cannot complete because of an unknown error. [TAdd]" Hope anyone can help. It's beyond frustrating.