This has happened a couple of confusing times. We have 2 licenses for Chief and if work is completed on one computer, that plan or layout file is closed, drop box will not always update or synch the file until Chief is closed. Seems like odd behavior and am not blaming Chief nor am sure it is a problem with the way Chief handles files when using DropBox and maybe it's even expected behavior? Just sayin' it's happened a few times and today we were able to directly trace the DropBox file non-synch