FreeFileSync Forum

Actually, now I see that yes, apparently this is caused by strange files that some computers show as having backslashes in their filename. You can probably ignore this issue.

For some subset of files (I have not figured out what determines this), the last file separator shows up as a backslash rather than a forward slash after comparing. This causes the Synchronize step to fail since the path becomes incorrect. Here is an example log entry:

Error Cannot copy file "/mnt ...