[BUG] CLI scrolling entire chat session every character typed

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?

When typing in the CLI each character typed causes the screen to quickly scroll through entire conversation making it extremely difficult to type anything quickly. Does not matter the key used, can be a letter, backspace, arrow key.

What Should Happen?

The console should just allow me to type without scrolling the entire conversation.

Error Messages/Logs

Steps to Reproduce

1. Open Claude Cli
2. Ask first question
3. Touch any key on your keyboard - screen quickly flashes top of conversation and scrolls down.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.0.72

Claude Code Version

2.0.73

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_