Ctrl+Shift+C no longer works in GNOME Terminal (regression)

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?

Bug: Ctrl+Shift+C no longer works in GNOME Terminal (regression)
▎ - Claude Code Version: 2.1.150
▎ - Terminal: GNOME Terminal (gnome-terminal)
▎ - OS: Linux Mint
▎ - Problem: Ctrl+Shift+C is intercepted by Claude Code and no longer passed through to the terminal for copying.
▎ Worked a few days ago.

What Should Happen?

The clipboard should work with claude as normal.

Error Messages/Logs

Steps to Reproduce

Mark Textand use Crtl+C, Shift+Crtl+C, Middle Mose Button or hold Shift and mark text in claude. Clipboard context is not being changed.

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.150

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

_No response_