INTRO: Recently, I tried to synchronize between a folder on a local D: disk drive and a USB drive (F:) plugged into USB3.0 port. A day earlier, I had added numerous files, all called "notes.txt"
in many of the subfolders of the local D: drive. The preview synchronization indicated that those files and many other recently created files were targeted for deletion. Now these files had never existed on the F: drive and so should have previewed
to be copied to the target folder on that drive. So I cancelled the synchronization, deleted the synctoy sync files in each folder and tried to sync as if they were in first time syncrhonization mode. Same preview results. So I changed the
settings for the synchronization to left to right transfer. Same results. So I deleted the folder pair and recreated the folder pair from scratch. The preview then correctly interpreted that the new files should be added to the F: drive.
(Windows 7 BTW, Disk D: magnetic, Disk F: magnetic).
QUESTIONS: What could have caused SyncToy to misinterpret the files to be marked for deletion? Why did I need to recreate the folder pair?