I use Insync to backup all my photos from my QNAP Nas, when the upload is completed everything works fine for a while. Then when I don’t use the iMac for some weeks and start it up again, Insync starts uploading all 12.000 files again. Everything stays the same in Google drive, but new files won’t be uploaded until Insync finishes the 12.000 files, and this take time. Why is this happening, is there any setting I have missed? And why doesn’t Insync see that all these files already are in Google drive, and just skip them?