Large PDF preview crashes app

“The ChatGPT desktop app's local Codex chat repeatedly crashed when opening one existing thread.”

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/19415/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

Desktop app crashes restoring a thread with a large PDF preview. Opening an existing chat with a saved PDF preview tab terminates the app with EXC_BREAKPOINT / SIGTRAP on CrBrowserMain.

Is this your bug?

File my report

Where: macOS desktop app
Error text: EXC_BREAKPOINT / SIGTRAP
Versions: 26.1013.40934
Platforms: macOS
How bad: Breaks a normal workflow.

Part of: macOS desktop app SIGTRAP crashes6 bugs

Desktop app crashes on launch4 people
Desktop app crashes mid-task3 people
Chrome_IOThread SIGTRAP crash3 people
Launch crash with V8 out-of-memory1 person
Startup crash with many pets2 people

Not quite your bug?

Renderer crash opening sessions3 people

Original reports2, newest first

Oct 21, 2026[macOS] Repeated main-process crashes with a 288 MiB PDF on build 21161, including chat restorationOn GitHub#55817
Oct 19, 2026macOS desktop app crashes with SIGTRAP when restoring a thread with a ~221 MiB PDF previewOn GitHub#55199