I'm using winSCP v 5.7 (Build 5125) on a laptop acer TravelMate 5720, S.O. Windows 8 Pro (reinstalled today).
The protocol used is FTP and the transfer Settings: Default.
The error appears when I upload the file tmp1.txt attached, doing drag&drop from the GUI Commander. On my internet's server I receive the file tmp2.txt attached. As you can see on the line 202, appears repeated/replaced the chars with the first 48 chars of the file.
I have tried the portable version and the appears the same too.
Thanks in advance for your help.