@trowland

There was an issue with the Debian 9 image and not setting the password correctly, though this has been fixed as of this reply, so I would destroy the existing Droplet and deploy a new Droplet with the fixed image and see if you’re able to log in.

If you’re still not able to log in, please tag me and I’ll pass it upstream so we can get this fixed!

Depending on the terminal emulator you’re using, special characters in passwords may not behave (this is an issue I’ve seen with Putty before, where @’s and bangs in passphrases make it unable to log in interactively). My advice would be to set up ssh keys and use those instead; you really should be using them anyway as it’s far easier, and more importantly, it’s much more secure.