No transfer, again

I had the same problem like macemmek.
The plugin told me that all uploads and downloads had been done successfully but they did not at all.

I figured out, that the string of the $file variable in the upload function contained backslashes instead of regular slashes so i added the following to line 1114:

// make remote file path from local file
$remote_dir = str_replace('\\', '/', str_replace($local_dir_fixed, $remoteRoot, $file));
$file = str_replace('\\', '/', $file);

Now the upload works perfectly – besides the fact, that the size is still not calculated.

But the download is not working…

https://wordpress.org/plugins/ftp-sync/