[BUG] - Claude 1.11847.5 (9692f0) 2026-06-09T17:34:27.000Z prompt window via GUI locks up on a long thread

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?

This has only occurred since the upgrade to Claude 1.11847.5 (9692f0) 2026-06-09T17:34:27.000Z that is running on mac osx on two different machines

What Should Happen?

I should be able to continue typing in the gui

Error Messages/Logs

No error messages ... just locks up.

Steps to Reproduce

Nothing I can do to show you replication.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

the one before Claude 1.11847.5 (9692f0) 2026-06-09T17:34:27.000Z

Claude Code Version

Claude 1.11847.5 (9692f0) 2026-06-09T17:34:27.000Z

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Just freeze then the whole window goes dark/black