Session teleport always fails with "No conversation found with session ID" on Windows

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?

Description
When trying to resume/teleport a cloud session from claude.ai into VS Code, it always fails with:

Error: Claude Code returned an error result: No conversation found with session ID: <uuid>

This happens with ALL sessions, including ones created minutes ago that have content visible on claude.ai.

Environment
OS: Windows
Editor: VS Code (latest)
Extension: Claude Code (latest version, tested with v2.1.79)
Auth: OAuth (claude.ai account)
Steps to reproduce
Create a session on claude.ai with some content
Open VS Code with Claude Code extension
Try to resume/teleport that cloud session
Error appears: "No conversation found with session ID"
Debug findings
From the extension logs:

Remote sessions are correctly listed (repo filter works after git remote is configured)
The teleport API call returns 0 log entries for every session
A local session is created with 0 messages, which then fails to load
Example log: Fetched 0 log entries for session session_01WdvAPSG5jJrPXtYcBCBCw4
What I've tried
Clean reinstall of VS Code (deleted .vscode, AppData/Roaming/Code, reinstalled)
Created missing config files (managed-settings.json, .claude/settings.json)
Initialized git repo with correct remote origin
Verified sessions have content on claude.ai web UI
None of these fixed the issue
Expected behavior
Cloud sessions with content should be resumable in VS Code via teleport.

What Should Happen?

Cloud sessions created on claude.ai that have content should be resumable in VS Code via the teleport feature. The API should return the session's log entries so they can be loaded locally.

Error Messages/Logs

Error: Claude Code returned an error result: No conversation found with session ID: 3a373f2a-2586-47f4-bb07-61286e919dbc

From extension logs:
Fetched 0 log entries for session session_01WdvAPSG5jJrPXtYcBCBCw4
Saved teleported session 77a211e4-1baa-4760-a6b9-21809a3243b6 with 0 messages
Error from Claude: Error: Claude Code returned an error result: No conversation found with session ID: 77a211e4-1baa-4760-a6b9-21809a3243b6

Steps to Reproduce

Steps to reproduce
Create a session on claude.ai with some content
Open VS Code with Claude Code extension
Try to resume/teleport that cloud session
Error appears: "No conversation found with session ID"

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.71 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_