[BUG] Started today CC only waits 3 seconds on bash commands and continues to say interrupted after to each promp

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?

This issue just started today after using CC on this machine for a good while.

It only waits 3 seconds on timed bash commands and returns to the prompt.

After a few attempts of talking to Claude it will say interrupted after to each prompt - I am not interrupting it.

I have changed nothing. I did not see Claude or Windows update. Have rebooted. Checked config. I do not see the cause.

This issue persists in an existing session or new one and in any project/directory I open it in.

What Should Happen?

It should work. :)

Error Messages/Logs

❯ Last time I ran claude code it could not make it past 3 seconds on a timed bash before returning to the prompt. I have rebooted my PC. Can you run a test bash?

● Sure, let me run a quick timed test.

● Bash(echo "Start: $(date +%T.%N)" && sleep 5 && echo "End: $(date +%T.%N)" && echo "Success - ran for 5 seconds")
  ⎿  Start: 11:21:52.761570159
     (3s · timeout 15s)

I think you are broken. Can you see an issue with your config?

● That's consistently dying around 2-3 seconds. Let me check your Claude Code settings for anything that might be interfering.

  Searched for 3 patterns, read 2 files (ctrl+o to expand)
  ⎿  Interrupted · What should Claude do instead?

❯ You also keep saying interrupted when I didn't interrupt you
  ⎿  Interrupted · What should Claude do instead?

Steps to Reproduce

Simply ask Claude to run any bash that uses its normal timeout instead of a background bash.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.80

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

WSL (Windows Subsystem for Linux)

Additional Information

_No response_