FreeFileSync Forum

Hard to say what the problem is, but it's very unlikely to be caused by FFS. What might help to find out what's going on is a Process Monitor log. However all it will probably reveal is a bug somewhere in the network stack.
OK, thanks... I will see if I can track it down. In the mean time, I guess ...

This issue is unrelated to this thread: Obviously there is some issue with the network (drivers?) that silently fail when deleting a directory, which leads to the observed behavior as FFS is unknowing of deletion errors despite checking for them.
Thanks, should I open a new thread? In the mean ...

I think I have the same problem so I will provide a simpler example of what doesn't work:
I have a network folder and a local folder each with mirrored files and subfolders. File syncing between the folders works fine. I can add, delete or move files on either location and the results are mirrored ...