[BUG] Running `claude` does nothing. Nothing happened.

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?

Executing Claude does nothing.

<img width="495" height="307" alt="Image" src="https://github.com/user-attachments/assets/6b0847c5-cd3b-4879-a24c-a3b6047cfe55" />

Just in case, I deleted ~/.claude.json and ran it again. This time an image appears, then it stops and nothing happens.

What Should Happen?

It should run normally as it did before.

Error Messages/Logs

Steps to Reproduce

1. claude

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.19

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

After retrying a few more times, it behaves inconsistently, but it seems to get as far as the login step. Then the following error occurs:

OAuth error: ENOENT: no such file or directory, mkdir '/Users/donghojung/.claude/debug'

Additionally, input becomes unresponsive intermittently. No keys work, including interrupts like Ctrl+C.

It worked fine when I installed it via Homebrew before, but the issue seems to have started after reinstalling it using claude install.