[BUG] Claude Desktop 1.1.5368 hangs on startup — stuck at RemotePluginManager sync (macOS)

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?

Environment

• App version: 1.1.5368
• macOS: 15.6.1 (Sequoia)
• Hardware: Apple M1 Max
• Arch: arm64

What's wrong
Claude Desktop hangs on every launch with a pinwheel. The app process spikes to 100%+ CPU and never becomes responsive. A fresh uninstall and reinstall does not fix it.

Root cause identified in logs
Every launch ends at the same line with nothing after it:

2026-03-08 04:15:16 [info] [RemotePluginManager] Starting remote plugins sync

The app successfully completes oauth, skills sync, growthbook, and extension update checks — then hangs indefinitely at RemotePluginManager.

Steps to reproduce

1. Launch Claude Desktop
2. App shows pinwheel immediately
3. Check ~/Library/Logs/Claude/main.log — last line is always [RemotePluginManager] Starting remote plugins sync

Workaround
Launching with WiFi off allows the app to open (shows ERR_INTERNET_DISCONNECTED), but turning WiFi back on causes it to hang again.

Additional context

• Tried full wipe of /Applications/Claude.app, ~/Library/Application Support/Claude, ~/Library/Caches/Claude, ~/Library/Logs/Claude and fresh reinstall — issue persists
• MCP servers (discord, mixpanel) all initialize successfully — not related to this issue

What Should Happen?

should open

Error Messages/Logs

Steps to Reproduce

Opening of Claude Desktop - enter not responding freeze

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.1.5368

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_