We've made some changes to the way the FTP upload process works. Authors logging in to FTP should not use their Marketplace password any longer, and should instead use an API key connected to their Marketplace account as their FTP password.
How do I find my API key? You can generate an API key by following the instructions here.
What happens if I revoke that one and then re-generate another? If you revoke an API key then you will have to update the FTP program with an active API key.
What if I have multiple API Keys? You can use any of your active API keys.If you experience any issues with the FTP process and have tried using an active Marketplace API key as a password, please open a support ticket.