Windows Codex Desktop repeatedly shows main-process error "Error: write EOF" after update

What version of Codex is running?

• Codex Desktop for Windows (Microsoft Store)
• Package version: 26.803.10989.0
• Architecture: x64

What is happening?

Since updating the Codex Windows desktop app, a modal error appears frequently at unrelated points during normal use. The app had not shown this error before the update.

Exact dialog text:

A JavaScript error occurred in the main process

Uncaught Exception:
Error: write EOF
    at WriteWrap.onWriteComplete [as oncomplete]
    (node:internal/stream_base_commons:87:19)

The error is not tied to one project action: it can appear at different times while using the app.

Troubleshooting already tried

• Used Windows Settings > Apps > Codex > Advanced options > Repair (Восстановить)
• Fully restarted the app / Windows

Repair did not resolve the issue. A full app reset was deliberately not attempted because preserving local Codex history and settings is important.

Expected behavior

Codex should handle a closed internal stream/child process without surfacing a recurring uncaught main-process exception to the user.

Impact

The error interrupts work repeatedly and began immediately after the update. It does not appear to be caused by a particular repository or action.

Start with the Windows desktop app's main-process handling of internal streams or child processes and reproduce the error using package 26.803.10989.0 during unrelated normal use. Trace the write EOF path and verify that a closed stream no longer produces a recurring uncaught modal, while preserving local history and settings during testing.