Codex Windows app freezes when HID discovery blocks Electron's main thread
mihalyimark · ghdev · 2026-07-18
A Codex Windows app bug can freeze the UI by synchronously probing HID devices
A GitHub issue against openai/codex reports that the Microsoft Store Codex app on Windows becomes unusable after startup when no Work Louder/Codex Micro device is connected.
- A CPU profile shows 95.4% of samples inside showdevices from node-hid.
- The app calls nodeHID.devices() synchronously on Electron's main/UI thread during Work Louder device discovery.
- When no matching device is found, discovery retries every 10 seconds, which can block UI rendering, IPC, and requests.
- The reporter says the same machine has a stuttering mouse pointer system-wide and eventually shows an error dialog.
The issue appears specific to the Windows HID stack and the optional Work Louder integration.
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