I use Dropbox on a Mac at home and a Windows machine at my office. I did not use my old Windows machine for 1.5 years because of the pandemic. I never used Dropbox again on that PC. I got a new office desktop 2 weeks ago, a Windows 10. I installed the Dropbox app, there are no security/firewall issues, all the right boxes seem to be ticked in Preferences, Dropbox is syncing with no issues or problems. Any files and folders I create at the office on the Windows machine upload to the cloud and down to my Mac with no trouble. However, *nothing* I have done on the Mac in the past 1.5 years will download from the cloud to the Windows machine. Can anyone advise? I am at home now, but will try fixes first thing when I go back to work tomorrow. I am wondering if the problem is SmartSync, which is only recognizing the files and folders on the Windows machine, not what is in the cloud.