New sessions hang indefinitely — existing sessions continue to work

Bug report

Version: 2.1.44
OS: macOS 26.3
Node: 18.20.4
Auth: Max subscription (OAuth)

Description

Starting any new Claude Code session hangs indefinitely with no output and no error message. This affects both interactive (claude) and non-interactive (claude -p "hello") modes. existing sessions continue to work normally.

claude --help and claude auth status respond instantly.

Steps to reproduce

1. Open a fresh terminal
2. Run claude -p "say hi"
3. Process spawns but produces no output — hangs indefinitely

What I've tried

• Updated to latest (2.1.44)
• claude auth logout + claude auth login
• Removed ~/.claude/cache/ and ~/.claude/statsig/
• Fresh terminal with clean environment
• Removed ANTHROPIC_API_KEY (confirmed using OAuth)