Dropbox made a change to how files are stored within the Dropbox folder.
Dropbox now takes the user's name and creates a folder with the user name as the "home" folder and moves all the contents of the person's dropbox into it.
Note this is a system-wide change and affects both Dropbox for Desktop and web versions:
When you open Dropbox for Desktop, the user sees a "new" folder with their name. Users only have permission to make changes and add new folders with the new, named folder.
Users cannot add files or folders to the root dropbox folder. They MUST only make changes within their named folder.
Attempts to place files into the base folder of Dropbox will result in the following error:
