[BUG] Errors 500 in Claude Code Desktop in Windows 11

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?

When I ask Claude Code to do a task reviewing the code of my local repo is throwing errors 500

What Should Happen?

Claude should work fine

Error Messages/Logs

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CZ9PBwphgj4X9AsQQfqC2"}

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CZ9ETTfwPdE4eAu3c33CL"}

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CZ9EW4xHF1n7Qn7USwpYq"}

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CZ9EYerHLzsU2PyQEeDEu"}

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CZ9Eb8YiSLsQhhwNTkbod"}

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CZ9FwpzEnvbLmhg9oFiHo"}

Steps to Reproduce

1. Open Claude Code Desktop
2. Ask Claude to do a task to investigate how a C# method works
3. You get the errors 500

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

1.1.7053

Claude Code Version

1.1.7053

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_