`rbw login` fails with 'Username or password is incorrect', while `bw login` succeeds about rbw HOT 5 CLOSED

$ rbw config show
{
  "email": "REDACTED",
  "base_url": "https://api.bitwarden.com/",
  "identity_url": null,
  "notifications_url": null,
  "lock_timeout": 3600,
  "sync_interval": 3600,
  "pinentry": "pinentry",
  "client_cert_path": null
}
$ rbw register
rbw register: failed to log in to bitwarden instance: api request returned error: 404

$ bw login
? Email address: REDACTED
? Master password: [hidden]
You are logged in!

To unlock your vault, set your session key to the `BW_SESSION` environment variable. ex:
  $ export BW_SESSION="REDACTED"
  $env:BW_SESSION=REDACTED"

You can also pass the session key to any command with the `--session` option. ex:
  $ bw list items --session REDACTED
$ rbw login
rbw login: failed to log in to bitwarden instance: Username or password is incorrect. Try again.
$