When I move photos, a copy remains in the original folder, why?

cld2018 wrote:

I'm organizing my photos and am moving some photos to a new folder called "non-family". But they are also remaining in the original folder.

Are you doing this through the Dropbox website in a browser or through the Dropbox folder on your computer?

If you're doing this in the Dropbox folder on your computer and you're dragging and dropping files, and you're on Windows, know that Microsoft has changed the default behavior when dragging files in a root sync folder from a move to a copy. To force a move, hold the Shift key while dragging.