Codex sandbox failure blocks apply_patch on Windows, even in writable workspaces
thenerd01 · ghdev · 2026-07-24
OpenAI Codex issue #35181 reports a Windows sandbox failure that blocks applypatch inside an authorized writable workspace, even when the target path is explicitly permitted. The reporter says the patch should have edited a CMakeLists.txt file successfully, but instead Codex returns helperunknownerror: setup refresh had errors during sandbox setup/refresh. The failure reproduces on Windows PowerShell, across absolute and workspace-relative paths, and even after a fresh task.
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