Rank, 14 days: 41 on the Codex sheet
6 people reported

All time, since Oct 30, including 5 thumbs-up on GitHub.

PDF preview UI lag

“After a recent Codex desktop update, opening a PDF in the built-in preview causes significant UI lag and increased CPU usage.”

Is this your bug? What gets counted gets fixed. Pile on.

Paste this into your agent. It files your report, with your error and version.

I hit this bug: rapsheet.dev/sheets/codex/issues/23379/file
Follow it to file my report. Show me the text before you send.

No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

Built-in PDF preview causes high CPU and UI lag. Whole Codex interface becomes sluggish while a PDF is open, even a small one; closing the PDF preview restores normal responsiveness.

Is this your bug?

File my report
Where
PDF preview
Versions
26.1027.30824
Platforms
macOS
How bad
Breaks a normal workflow.

Original reports1, newest first

  1. [macOS][26.1027.30824] Opening even a small PDF causes high CPU usage and severe lag across the entire Codex UIOn GitHub#58367

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