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claude-code - 💡(How to fix) Fix [BUG] Claude Desktop crashes silently when project folder is on a virtual/cloud-mapped drive

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Error Message

The desktop app crashes immediately after I enter a prompt in any project folder located on my V: drive (Zee Drive / SharePoint). The window closes with no error dialog. Folders on my local C: drive work fine. This started today; V: folders worked yesterday. Note: desktop app and CLI were both updated on April 16, suggesting a regression in this release. No Windows Event Viewer APPCRASH / Application Error / WER entry for Claude.exe main.log shows [LocalSessionManager] Skipping git info for non-local path: V:... (detects V: as non-local) but no error afterward The CLI itself works fine with V: as cwd. The bug is in the desktop app's wrapper/spawn logic for virtual drives — likely during workspace setup (file watcher, cwd resolution, or UNC backing-path lookup). Desktop catches the error and exits without logging.

Error Messages/Logs

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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?

Bug: Claude Desktop crashes silently when project folder is on a virtual/cloud-mapped drive

Environment

OS: Windows 10 (Build 26200.8246) Claude Desktop: 1.3109.0 (35cbf6), built 2026-04-16 Claude Code CLI: 2.1.111 (installed 2026-04-16) Virtual drive: V: — SharePoint mounted via Zee Drive Summary The desktop app crashes immediately after I enter a prompt in any project folder located on my V: drive (Zee Drive / SharePoint). The window closes with no error dialog. Folders on my local C: drive work fine. This started today; V: folders worked yesterday. Note: desktop app and CLI were both updated on April 16, suggesting a regression in this release.

Steps to reproduce

Open Claude Desktop, select a project folder on V: (e.g., V:\09 AI Skills\Script - WIP and Bill) Type any prompt and submit App closes immediately Diagnostics already done

No Windows Event Viewer APPCRASH / Application Error / WER entry for Claude.exe No Crashpad dumps since January → not a native/Chromium crash; app is exiting silently at the JS layer No session file is written in ~/.claude/sessions/ for the crashed attempts — CLI subprocess dies before writing main.log shows [LocalSessionManager] Skipping git info for non-local path: V:... (detects V: as non-local) but no error afterward Running the CLI directly works: cd /d "V:\09 AI Skills\Script - WIP and Bill" then claude.exe --print "hi" returns cleanly with exit code 0 Crash happens on every V: folder, not just one. Renaming (removing & from folder name) did not help. Installed Claude Code CLI binary: C:\Users\lliu\AppData\Roaming\Claude\claude-code\2.1.111\claude.exe Conclusion The CLI itself works fine with V: as cwd. The bug is in the desktop app's wrapper/spawn logic for virtual drives — likely during workspace setup (file watcher, cwd resolution, or UNC backing-path lookup). Desktop catches the error and exits without logging.

What Should Happen?

Claude should not crash when I point desktop app to a local drive mapped to a Sharepoint library.

Error Messages/Logs

Steps to Reproduce

Open Claude Desktop, select a project folder on V: (e.g., V:\09 AI Skills\Script - WIP and Bill) Type any prompt and submit App closes immediately Diagnostics already done

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

Claude Desktop: 1.3109.0 (35cbf6), built 2026-04-16

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

No response

extent analysis

TL;DR

The desktop app's wrapper/spawn logic for virtual drives is likely causing the crash, and a workaround may involve modifying the app's configuration to properly handle virtual drive paths.

Guidance

  • Investigate the desktop app's file watcher and cwd resolution logic to ensure it correctly handles virtual drive paths, such as those starting with V:\.
  • Verify that the main.log file is correctly logging errors and warnings, and check for any patterns or clues that may indicate the cause of the crash.
  • Consider testing the desktop app with a different virtual drive mapping or a local folder with a similar path structure to isolate the issue.
  • Review the changes made in the latest version (1.3109.0) to see if any updates may have introduced this regression.

Example

No code snippet is provided as the issue seems to be related to the desktop app's internal logic and configuration.

Notes

The fact that the CLI works fine with virtual drives suggests that the issue is specific to the desktop app's wrapper/spawn logic. The lack of error logs or crash dumps makes it challenging to diagnose the issue, but investigating the app's configuration and logic may provide clues.

Recommendation

Apply a workaround by modifying the desktop app's configuration to properly handle virtual drive paths, as the issue is likely related to the app's internal logic rather than a bug in the CLI or underlying libraries.

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claude-code - 💡(How to fix) Fix [BUG] Claude Desktop crashes silently when project folder is on a virtual/cloud-mapped drive