[BUG] Copying from Claude Code in Windows Terminal to Notepad introduce errors in the text.

Open 💬 0 comments Opened Jun 25, 2026 by mimlitsch

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?

Claude code created a lot of output that I wanted to peruse. I selected the text and pasted it into Notepad. As I was reading, I noticed several "errors". When I looked back at the source (in Windows Terminal) the text was different.

For example, in Terminal I saw:

These are the only two real "someone rebuilt Card" instances — and both exist only to

But in Notepad, I saw:

These are the only two real "someonnd both exist only to

There were multiple "errors" like this in the two screens worth of text I copied and pasted.

What Should Happen?

I should be able to copy from Windows Terminal to Notepad without the text becoming different.

Error Messages/Logs

Steps to Reproduce

Select a large amount of text from Claude Code running in Windows Terminal, copy it, paste it into Notepad, look for differences.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Not sure, it worked yesterday.

Claude Code Version

2.1.190

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_

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