[BUG] /usage charts flash briefly then disappear

Preflight Checklist

• [x] I have searched existing issues
• [x] This is a single bug report
• [x] I am using the latest version of Claude Code

What's Wrong?

Running the /usage slash command renders the usage charts for a brief moment, then they disappear, leaving the view without readable usage data. Re-running /usage reproduces the same flash-then-vanish behavior, so current usage cannot actually be viewed.

What Should Happen?

After running /usage, the usage charts should remain visible so current usage can be reviewed.

Steps to Reproduce

1. Open Claude Code
2. Run /usage
3. Observe the usage charts render for a brief moment
4. Charts disappear before they can be read
5. Re-running /usage reproduces the same behavior

Claude Model

Opus

Is this a regression?

I don't know

Claude Code Version

2.1.118 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2 (zsh)