[BUG] Cannot copy highlighted portion of text in Claude app window in the Code mode via right click menu (copies only the entire message)

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?

After updating to latest version of Claude app, I can no longer copy JUST the highlighted portion of the text via the right click menu, only the entire message. In the context menu I only see "Copy message". The hilight is ignored. I think the previous version of Claude app allowed that.

Workaround: Press Ctrl-C

What Should Happen?

Only the selected (block-highlighted) portion of the text should have been copied.

Error Messages/Logs

Steps to Reproduce

1) Have the Claude app in the Code mode write some normal text to you (not Code quote).
2) Select a word or two in the text
3) Right click it and see in the context menu you don't have the equivalent of Ctrl-C (only Copy Message).

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude 1.3109.0 (35cbf6) 2026-04-16T20:32:01.000Z

Platform

Other

Operating System

Windows

Terminal/Shell

I am not sure.

Additional Information

_No response_