Turning off backup copy when overwriting a file using the GUI

martin wrote:

You must have enabled recycle bin in session settings:
https://winscp.net/eng/docs/ui_login_recycle_bin

martin wrote:

So then, isn't it the server itself that does the backup?

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

To generate the session log file, enable logging, log in to your server and do the operation and only the operation that causes the error. Submit the log with your post as an attachment. Note that passwords and passphrases not stored in the log. You may want to remove other data you consider sensitive though, such as host names, IP addresses, account names or file names (unless they are relevant to the problem). If you do not want to post the log publicly, you can mark the attachment as private.