[BUG] Claude Code is crashing with a stack trace

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?

In tmux, Claude code is consistently crashing if the focus in tmux is switched to a different pane. Unsure when this is trigger exactly.

What Should Happen?

Session inside tmux has been working well, new versions introduced this bug.

Error Messages/Logs

669:   `+(c.join(" > ")+`
 670:
 671: No matching component was found for:

 - O7 (/$bunfs/root/claude:668:20555)
 - RX (/$bunfs/root/claude:668:28704)
 - rO (/$bunfs/root/claude:668:28858)
 - M7 (/$bunfs/root/claude:668:25070)
 - <anonymous> (/$bunfs/root/claude:471:8027)
 - ER (/$bunfs/root/claude:3559:4179)
 - W_0 (/$bunfs/root/claude:6327:12557)
 - Z$T (/$bunfs/root/claude:6340:10357)
 - v1 (/$bunfs/root/claude:668:20765)
 - U6 (/$bunfs/root/claude:668:39157)

Steps to Reproduce

1. Create a tmux session
2. Start Claude Code
3. Switch to another window for a certain period of time (unsure when the issue is triggered)
4. Switch back to the window with Claude Code
5. You will notice a long stack trace ending with the lines above

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.17

Claude Code Version

2.1.34

Platform

AWS Bedrock

Operating System

macOS

Terminal/Shell

Other

Additional Information

_No response_