[BUG] 2.1.19

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

I have done this muiltiple times before, but now when i launch CC on a droplet, on a remote host, and I paste the URL in, i get:

Invalid OAuth Request
Missing code_challenge parameter

Pasting in the new url:

$ sed 's/&/^[[109;5u/g' path |grep code_
code_chalference+user%3Asessions%3Aclaude_code+user%3Amcp_servers
code_challenge_method=S25f7m0pomaj_TLntSCLnei76E8

So yeah, the error's statement is right, it's not there.

What Should Happen?

I should get signed in.

Error Messages/Logs

Steps to Reproduce

New ubuntu server
Install claude
Try to sign in for first time ever
Fail

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Unknown

Claude Code Version

2.1.19

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_