[BUG] macOS App - Claude Code Failing to Retriver of Session & Failing to Initiate new ones

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?

What's Wrong?

Claude Code in the macOS Desktop app throws an auth error when attempting to start or resume any session, despite being actively signed in. All prior session history is also missing from the sidebar — only "New session" appears.

What Should Happen?

What Should Happen?

Sessions should load normally and new sessions should start without requiring re-authentication after a fresh sign-in. Prior session history should be visible in the sidebar.

Error Messages/Logs

## Error Messages/Logs

Error invoking remote method '$eipc_message$_ae099182-7d63-4ba6-b03f-360c4c996cb1_$_claude.web_$_LocalSessions_$_start': Error: Unable to start session: account information is unavailable because your sign-in has expired. Please sign in to the desktop app again.

Steps to Reproduce

Steps to Reproduce

1. Open Claude Desktop and switch to Code mode
2. Attempt to open an existing session or start a new one
3. Auth error appears immediately — no session can be started or resumed

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.1.9310 (cb30ac)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

<img width="524" height="173" alt="Image" src="https://github.com/user-attachments/assets/6b9332a8-fa7b-4b12-809c-8c36ed472ad1" />

What's Wrong?

Claude Code in the macOS Desktop app throws an auth error when attempting to start or resume any session, despite being actively signed in. All prior session history is also missing from the sidebar — only "New session" appears.

What Should Happen?

Sessions should load normally and new sessions should start without requiring re-authentication after a fresh sign-in. Prior session history should be visible in the sidebar.

Error Messages/Logs

Error invoking remote method '$eipc_message$_ae099182-7d63-4ba6-b03f-360c4c996cb1_$_claude.web_$_LocalSessions_$_start': Error: Unable to start session: account information is unavailable because your sign-in has expired. Please sign in to the desktop app again.

Steps to Reproduce

1. Open Claude Desktop and switch to Code mode
2. Attempt to open an existing session or start a new one
3. Auth error appears immediately — no session can be started or resumed

Claude Model

claude-sonnet-4-6

Is this a regression?

Yes — this worked prior to the 2026-03-27 update.

Last Working Version

Unknown — broke after updating to 1.1.9310 (cb30ac) 2026-03-27T17:11:42.000Z

Claude Code Version

1.1.9310 (cb30ac) 2026-03-27T17:11:42.000Z

Platform

Anthropic API (Claude Desktop app)

Operating System

macOS

Terminal/Shell

zsh

Additional Information

Attempted fixes — none resolved the issue:

• Sign out and back in
• Full app quit and relaunch (Cmd+Q)
• Cleared Local Storage, Session Storage, and IndexedDB from ~/Library/Application Support/Claude/
• Manually copied session files from local-agent-mode-sessions to claude-code-sessions (per #29373) — files are present on disk but do not appear in the sidebar

Key observation: Claude Code works correctly in VS Code on the same machine, confirming this is specific to the Desktop app's auth layer and not a broader account or credential issue.

This may be related to the session migration bug reported in #29373.