For anyone reading this in 2024 or later: GoldRaccoon will no longer work for uploading any file over FTP! After you configure it, the upload will not work, and the runtime debug log will greet you with this message: "FTP is deprecated for URLSession and related APIs. Please adopt modern secure networking protocols such as HTTPS"

The solution is to move to SFTP, e.g. using this fresh library: https://github.com/mplpl/mft

Wish you all the luck!