Cannot upload file via SFTP

Hi!
I’m trying to upload file via SFTP. While using WinSCP everything works great. I’ve used this command:

/tool fetch url="sftp://nas/MikroTik-20210522-0903.backup" src-path="flash/MikroTik-20210522-0903.backup" user="xyz" password="xyz" dst-path="MikroTik-20210522-0903.backup" upload=yes

And I’ve got error:

no such item (4) action timed out - try again, if error continues contact support and send a supout file (13)

Have you got any idea what can I do? With FTP everything just works.

As a server I’m using Synology NAS.

You have distorced the way of command must be used.

/tool fetch mode=ftp address=is.mysite.net port=21 user=mikrotik password=pazzword upload=yes ascii=no src-path="/flash/localfile.ext" dst-path="/remotedir/remotefile.ext"

According to this post: http://forum.mikrotik.com/t/mikrotik-scp-sftp-client-to-transfer-file-between-mt/96933/1 it is a valid command.

Fixed in v6.47.4.<<<

Sorry, I try in 6.46.8