Crash Report
Open 💬 2 comments Opened Aug 3, 2026 by kinney-recruiting
💡 Likely answer: A maintainer (github-actions[bot], contributor)
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The new unified ChatGPT macOS app version 26.727.51351 (6119) repeatedly crashes approximately 10 seconds after launch on macOS 26.6, Apple Silicon Mac16,13. The crash persists after restarting, uninstalling with CleanMyMac, reinstalling from OpenAI, and attempting a clean temporary profile. Both crash reports show EXC_BREAKPOINT/SIGTRAP on CrBrowserMain at Codex Framework ares_llist_replace_destructor + 2265648, during a Node filesystem/string-decoding callback.
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Same crash here on the latest build, and I think it can be tied to the avatar/pet overlay.
Environment: ChatGPT macOS app 26.730.61639 (6234) · macOS 26.6 (25G72) · Apple Silicon (M4 Pro, Mac16,11). 100% reproducible, a few seconds after launch — in this build, immediately after sign-in.
Same signature as this issue: EXC_BREAKPOINT (SIGTRAP) on CrBrowserMain, top frame ares_llist_replace_destructor, inside a Node fs/string callback:
node::fs::AfterInteger -> node::StringBytes::Encode -> v8::String::NewFromTwoByte -> v8::Isolate::Enter -> SIGTRAP
New data point — it looks like the floating overlay/PiP window. The macOS unified log in the seconds before the crash shows the app creating the avatar/PiP overlay panel, which AppKit on 26.6 rejects:
(sky.node) RemoteHostedPIPContent started private endpoint host
(AppKit) NSWindow does not support nonactivating panel styleMask 0x80 [repeated ~7x]
(AppKit) StateRestoration: restoreWindowWithIdentifier... Unable to find className=(null)
(libxpc) failed to do a bootstrap look-up: xpc_error=[3: No such process]
-> SIGTRAP ~2s later
That nonactivating panel styleMask 0x80 error is the same one reported for the pet/avatar overlay in #20706, so the overlay window creation appears to be the trigger on macOS 26.6.
Tried (crash persists): clean reinstall; macOS 26.5 -> 26.6; full app-data wipe + re-login; tccutil reset All com.openai.codex; removed ~/.codex; Pet set to Default; cleared Saved Application State + disabled window restoration; all peripherals disconnected; single display. The overlay panel is created unconditionally on every launch, so none of these help — looks like an app-side fix is needed. Full Apple .ips reports available.