Storing file without unique folder name

I have set custom directory instead of temp folder like D:\ftp. But it is creating extra folder scp* and then store like D:\ftp\scp01277\..... So every time I am getting new folder. I don't want it, rather override each time.

Screenshot:
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Before it was working what I am asking. After upgrading I am unable to configure it.

You want to turn on "Keep temporary copies of remote files in deterministic paths":
https://winscp.net/eng/docs/ui_pref_storage