Bug: Claude Desktop window content clipped on left side

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?

The left edge of the Claude Desktop window is cut off — approximately 30–50px of content is missing from the sidebar, main chat area, and all UI elements on the left side. The right panel (Memory/Instructions/Files) renders normally. The issue affects both the home screen and inside projects/conversations.

Environment:

• Mac: MacBook Pro 2019 (AMD Radeon Pro 5500M)
• macOS version: [please fill in]
• Claude Desktop: latest version, freshly reinstalled
• Display: custom scaled resolution (displayBounds reported as 1344×840 in window-state.json)

Started: ~April 15, 2026 (two days before report)

Persists across:

• App restarts
• macOS restarts
• Deleting com.anthropic.claudefordesktop.plist + killall cfprefsd
• Clearing GPU caches (GPUCache, DawnGraphiteCache, DawnWebGPUCache)
• Full uninstall and reinstall
• Launching with --disable-gpu flag
• Launching with --force-device-scale-factor=1 flag
• Changing display scaling back to default

Does NOT affect:

• claude.ai in browser (renders normally)
• Any other app on the system

Screenshots attached showing the clipping in sidebar and main content area.

What Should Happen?

<img width="1133" height="828" alt="Image" src="https://github.com/user-attachments/assets/26b9020e-3c93-48ff-bce2-bf681077ef8a" />

Error Messages/Logs

Steps to Reproduce

Steps to Reproduce:

1. Open Claude Desktop on MacBook Pro 2019 (Intel, AMD Radeon Pro 5500M)
2. Observe that the left ~30–50px of all window content is clipped/missing
3. This affects the sidebar (conversation titles truncated on left), main chat area (message text truncated), and home screen (project cards truncated)
4. The right-side panel (Memory/Instructions/Files) renders correctly
5. The issue is persistent — it appears on every launch and does not resolve on its own

Note: This is not intermittent. Once it started (~April 15, 2026), it has been 100% reproducible on every launch. No specific user action triggered it — it appeared after a routine app update.

The same account viewed at claude.ai in Safari/Chrome renders correctly with no clipping.

Troubleshooting already attempted (none resolved it):

1. Restarted macOS — no change
2. Deleted ~/Library/Preferences/com.anthropic.claudefordesktop.plist + ran killall cfprefsd — no change
3. Deleted GPU caches (GPUCache, DawnGraphiteCache, DawnWebGPUCache) from ~/Library/Application Support/Claude/ — no change
4. Completely uninstalled and reinstalled Claude Desktop — no change
5. Launched with --disable-gpu flag — no change
6. Launched with --force-device-scale-factor=1 flag — no change
7. Changed display scaling from custom back to default — no change

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude Code v2.1.98

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_