CTRL+SHIFT+C does not do the same as clicking on the edit/copy_bibliography
The shortcut copies only the author and the title, while clicking on the button in the menu copies all necessary info to paste it into word (I am making a syllabus, I do not need to cite ideas now, better to paste formatted text in this case).
Check the shortcuts in the Preferences --> Advanced --> Shortcuts and make sure ctrl+shift+c is assigned to copy selected items and not ...selected item citations.