System Error Code 3: during sync

I get the following error when trying to syncrhonize directories between local hard drive & WD MyCloud via ftp.
System Error. Code: 3.
The system cannot find the path specified
In the preview before sync, I can see that the local directory is always ".\"
and the remote is always "./" even for subdirectories.
I am running windows 7, in commander gui for latest statble release & also tried older version.
It doesn't matter what the local or remote paths are, they are always as shown above in the preview screen. It seems that this is what is causing because I don't have (or want) access to the root of the ftp. It needs to start in the folder specified. I must be overlooking something really basic & appologize.

Sincerely,
Yates

The .\ and ./ refer to roots of the synchronization. So it's ok.

Please attach a full log file showing the problem (using the latest version of WinSCP).