From time to time items previously placed in Favorites in my Finder sidebar disappear. Examples include Desktop, Downloads, Movies, Pictures and one of my frequently-used Dropbox folders. The main Dropbox folder (with its special icon) remains in the sidebar, but moved to the end of the sidebar list in “Locations”.
This happens repeatedly, but infrequently enough that I cannot determine a pattern or a possible action I might have done to cause this.
To correct the problem I navigate in Finder to the desired folder and drag it to the sidebar. Using Finder Settings works for some of the items (Desktop, Downloads, Movies, Pictures) but not for the main Dropbox folder or a Dropbox subfolder. This works for a while … until some or all of these disappear again.
Has this happened to others? Anything I can do to prevent it?