[BUG] Text input in flicker-free rendering does not work

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 you switch on flicker-free rendering on PowerShell it does not allow for any text input

What Should Happen?

Self explanatory; text input should work

Error Messages/Logs

n/a

Steps to Reproduce

1. Turn on flicker-free rendering

Claude Model

None

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

v2.1.191

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

This also did not work on my Debian 13 Trixie VPS through SSH (via Alacritty on Arch, but this might be an SSH issue, still worth noting)