[BUG] Layout clipping in macOS desktop app

[DAndruss]

Preflight Checklist

• I have searched existing issues and this hasn't been reported yet
• This is a single bug report (please file separate reports for different bugs)
• I am using the latest version of Claude Code

What's Wrong?

App version: 1.2581.0 (f10398) 2026-04-14T17:16:40.000Z
macOS version: 13.7.8 (22H730)

There is a fixed-width dead zone between the left sidebar and the main content area that clips the left edge of all content — chat titles, project names, and conversation text. The content centers in the remaining space but its left side is always cut off. The dead zone does not respond to sidebar resizing, window resizing, or any other user action. The only workaround is making the window extremely wide. Restarting the app does not fix it.

Screenshot attached showing the truncated project title ("les Data & Analysis" instead of "Sales Data & Analysis") and clipped chat names in the sidebar history.

What Should Happen?

There should be no "dead zone". It's like an opaque window was placed over the right edge of the left sidebar and extends to the right, blocking any text that is normally shared there.

The display should be normal as it always was.

Error Messages/Logs

Steps to Reproduce

1. Open Claude desktop. Choose a project.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

⏺ Claude Code 2.1.109. The model I'm running on is Claude Opus 4.6 (1M context).

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

[github-actions]

Found 1 possible duplicate issue:

1. [BUG] White space between sidebar and chat area after app update (macOS) #48374

This issue will be automatically closed as a duplicate in 3 days.

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🤖 Generated with Claude Code

[DAndruss]

Update: I've confirmed this bug is display-specific. It appears on my MacBook Pro's built-in Retina display (16-inch, 3072 × 1920) but disappears when I drag the window to an external Samsung LS32A70 (31.5-inch, 3840 × 2160). Screenshots of both attached.

Changing the built-in display's resolution scaling in System Settings had no effect — the bug persists at all scaling options. So this is tied to the display hardware itself, not the user's scaling preference.

This points to a display scaling regression in the latest app update, likely specific to Ventura + certain display configurations. The original report (#48374 ) was from another Ventura user (13.4) and shows the same behavior. That issue has been labeled invalid, but with two independent users on Ventura reproducing the same bug immediately after the latest update, I'd ask the team to reconsider — this is a real regression, not a system configuration problem.

Full hardware and software details in my comment on #48374 .

[GreenVisionApps]

how i fix this trash?

[mansigupta]

has anyone heard any fixes for this? it's supremely annoyign and there's no way around it.