Hi all. I have set up a master sync folder on an external hard drive and have a list of sub folders that have all sync perfectly for the last 6 months. Whenever I have created a new folder in the past it has optimised the new folder and uploaded, not touching folders that have seen no activity. Why does it now optimise all 3000 photos every time I sync. I dont know what I have done differently! I only put photos into the master sync folder that I want so have previously checked all folders. I have trawled the forum but not seen this issue. Hoping somebody will make me look like a fool as its getting pretty tiresome! Best to all Chris.