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codex - 💡(How to fix) Fix Codex Desktop 26.513.20950 (2816) crashes on launch on macOS 26.4 build 25E5218f with EXC_BREAKPOINT / SIGTRAP in Electron Framework / V8 / Node startup

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Error Message

  • Exception: EXC_BREAKPOINT (SIGTRAP)
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What version of the Codex App are you using (From “About Codex” dialog)?

26.513.20950 (2816)

What subscription do you have?

Unknown / crash happens before any UI or login screen appears

What platform is your computer?

Darwin 25.4.0 arm64 arm; macOS 26.4 (25E5218f); Mac16,13 / Apple M4 / 16 GB

What issue are you seeing?

Codex Desktop crashes immediately on launch before any UI appears.

Crash summary:

  • Exception: EXC_BREAKPOINT (SIGTRAP)
  • Termination: Trace/BPT trap: 5
  • Crash point: Electron Framework / V8 / Node startup
  • Incident Identifier: 3E25A905-8342-4126-89BE-5EA28D7E47B

Environment:

  • Codex Desktop version: 26.513.20950 (2816)
  • macOS: 26.4 (25E5218f)
  • Hardware: Mac16,13 / Apple M4 / 16 GB
  • Architecture: Apple Silicon / arm64
  • Install path: /Applications/Codex.app

Actual behavior: Codex Desktop exits immediately with EXC_BREAKPOINT (SIGTRAP) in Electron Framework / V8 / Node startup.

What steps can reproduce the bug?

  1. Install or update Codex Desktop to 26.513.20950 (2816).
  2. Launch Codex.app from /Applications.
  3. The app crashes immediately before any visible UI appears.

What I tried:

  • Rebooted macOS.
  • Re-launched Codex.app.
  • Collected full crash reports from ~/Library/Logs/DiagnosticReports.
  • Ran codesign / spctl / xattr diagnostics.

What is the expected behavior?

Codex Desktop should launch and show the main window or login screen.

Additional information

This may be related to other macOS 26.x Codex Desktop / Electron / signature / sandbox issues, but this report is specifically for Codex Desktop 26.513.20950 (2816) on macOS 26.4 build 25E5218f.

Attachments available if needed:

  • Full .ips crash report
  • system.txt
  • codesign.txt
  • spctl.txt
  • xattr.txt

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#serialization error#model compatibility#GPU setup#container setup#orchestration issue

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codex - 💡(How to fix) Fix Codex Desktop 26.513.20950 (2816) crashes on launch on macOS 26.4 build 25E5218f with EXC_BREAKPOINT / SIGTRAP in Electron Framework / V8 / Node startup