[BUG] Can't type # in Claude Code on a UK keyboard.

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?

If I try to type # on a UK keyboard on a Mac keyboard (option-3 ), nothing happens. I can type # into other applications.
Background - I am trying to use the memory feature in Claude Code to add appropriately into Claude.md as directed in claude-code-in-action course.
Workaround - I can cut and paste a # into claude code for now.

What Should Happen?

A # should appear.

Error Messages/Logs

Steps to Reproduce

Open claude.
Type # (option-3) on a UK keyboard.

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

v2.1.19 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_