Files are transferred and immediatly deleted on FTP backend

Thanks for sharing. This is good news. Concerning the docs: While switching a test remote to SFTP I unintentionally stumbled upon another question that I asked here: Documention still correct? "Note that some SFTP servers will need the leading / - Synology is a good example of this." I forgot to set the slash in front and it seems to work.
Maybe the docs are outdated here too.