[BUG] Thinking and not coding for more than 10 minutes for simple tasks with oppus 4.6 - then freezes

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?

Latest version of claude code with oppus 4.6 start thinking and never goes to coding phase. This happened a couple of times already since yesterday. It goes to the point of thinking for 20min and never coding and then claude code freezes and I have to kill the process . Switching to Sonnet makes it work fine

What Should Happen?

It should properly execute the tasks like in previous claude code versions with oppus 4.5

Error Messages/Logs

Steps to Reproduce

Ask claude code for a simple task

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.34 (Claude Code)

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

_No response_