[Windows Desktop] Open folder generates malformed path and fails with ENOENT

[dengren]

What version of the Codex App are you using (From “About Codex” dialog)?

26.810.50856

What subscription do you have?

Plus

What platform is your computer?

Microsoft Windows NT 10.0.19045.0 x64

What issue are you seeing?

Environment:

• OS: Windows
• Codex version: <About Codex 26.810.50856>
• Workspace: C:\GitHub\deformxfer

Expected:
The “Open folder” action opens C:\GitHub\deformxfer in Explorer.

Actual:
The workspace runs normally and the directory exists, but “Open folder” fails:

ENOENT: no such file or directory, stat 'C:\c..C:\GitHub\deformxfer'

Notes:
The app appears to concatenate a path prefix with an already absolute Windows path.
The issue occurs for multiple projects.

What steps can reproduce the bug?

I don't konw，maybe suddenly exit when codex is running task？

What is the expected behavior?

No response

Additional information

No response

[github-actions]

Potential duplicates detected. Please review them and close your issue if it is a duplicate.

• [Codex Desktop Windows Bug] Path normalization error with SUBST mapped drive triggers frequent crashes (no issues on macOS) #37525
• [Windows] “Open in folder” falls back to C:\ for mapped-drive/UNC project files #38668

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