OpenAI Codex Update Causes System-Wide Mouse Stutter on Windows
RainyMarks · ghdev · 2026-08-15
Users reported severe system-wide mouse stutter and lag after updating the OpenAI Codex desktop app to version 26.810.6296.0 on Windows 11. Investigation revealed high CPU usage and a busy loop in the main Electron process. The issue resolves immediately upon fully quitting the app, indicating a performance regression in the new build.
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