[BUG] Claude Desktop UI bug

Me too. My Claude Desktop version is 0.12.125 on Windows 11:

<img width="365" height="76" alt="Image" src="https://github.com/user-attachments/assets/25dc6459-00af-4596-9903-672e6d5b3f59" />

Same here, seems to be actual bug with latest version

Also my local MCP can't connect to the claude desktop

Me too on the missing title bar. I see this in the log FWIW:

2025-08-28 21:24:24 [info] Failed to set title bar overlay, this is probably expected

I can resize, minimize, and maximize the window. I just can't drag it.

Same problem here this morning on Windows 11 after I presume an automatic update, and this following yesterday afternoon's no mcp tool working issue. I am guessing it is probably widespread. All the usual Windows menus have disappeared including Exit and help. I am reduced to using taskmanager to kill the Claude desktop processes.

appVersion: '0.12.125',
platform: 'win32',
arch: 'x64',

Same issue Menu bar disappeared on Windows. I even went restored the windows to a week ago. i think it is a Claude problem. the MCP is not working too. I hope someone can provide a solution soon.

+1 experiencing this exact issue

Environment:

• Windows 11
• Claude Desktop (auto-updated to latest)
• Issue started recently (window dragging worked previously)

Current workaround: Resize from window edges to reposition (extremely inefficient)

This breaks fundamental Windows UX expectations. All Windows apps should support title bar dragging.

Happy to provide additional debugging info if needed.

Same here.

I've uninstall, reinstalled it using latest installer, still the same.

Hi - can you submit issues about Claude Desktop or web to one of these:

• On claude.ai, click "Get help" in the bottom-left menu
• Submit a ticket through support.anthropic.com

This repo is specifically for Claude Code.

Additional Information: MCP Server Toggle State Bug Found

I've discovered what might be the root cause of the UI issues on Windows 11. Through log analysis, I found that Claude Desktop ignores MCP server toggle states and starts ALL configured servers regardless of UI settings.

Evidence

UI Shows Only 3 Servers Enabled:

• ✅ desktop-commander
• ✅ graphiti
• ✅ time
• ❌ All other 14 servers are toggled OFF

But ALL 17 Servers Are Actually Running:

# Logs from disabled servers (should not exist):
2025-08-29T21:33:25.647Z [brave-search] - Server is OFF but running
2025-08-29T21:33:24 [chrome-mcp] - Server is OFF but running  
2025-08-29T21:33:24 [mcp-gsuite] - Server is OFF but running
... (all 17 servers have recent logs)

Main.log Shows Extension Loading Loop:

2025-08-29 16:33:23 [warn] Extension context7 not found in installed extensions
2025-08-29 16:33:23 [warn] Extension graphiti not found in installed extensions
2025-08-29 16:33:24 [warn] Extension brave-search not found in installed extensions

This repeats TWICE for all 17 servers, suggesting a loading loop.

Impact on UI Issue

This excessive loading might be causing:

1. Resource exhaustion - 17 processes instead of 3
2. Extension loader crash - Too many "not found" errors
3. UI render failure - Electron crashes during startup

Steps to Reproduce

1. Configure multiple MCP servers in %APPDATA%\Claude\claude_desktop_config.json
2. Disable most servers via UI toggles (keep only 2-3 enabled)
3. Restart Claude Desktop
4. Check %APPDATA%\Claude\logs\ - ALL servers have recent timestamps
5. UI fails to render properly

Temporary Workaround

Remove unused servers from claude_desktop_config.json entirely rather than relying on UI toggles.

System Info

• Windows 11 Pro
• Claude Desktop (latest as of Aug 29, 2025)
• 17 MCP servers configured, only 3 should be active

This toggle state bug combined with the extension loading loop could be the root cause of the missing title bar issue.

Locking this issue since this is the Claude Code repo, but this issue report is for a problem with Claude Desktop / Claude Web.