Codex frequently crashes

What version of the Codex App are you using (From “About Codex” dialog)?

26.601.21317

What subscription do you have?

Pro

What platform is your computer?

Darwin 25.4.0 arm64 arm

What issue are you seeing?

Sounds reminiscent of this issue: https://github.com/openai/codex/issues/11016

I'll tab into Codex UI after doing other things, and it will suddenly crash.
Sometimes it crashes on its own.
Sometimes it will just very briefly crash and reappear (like part of it was still alive, except it will lose the most recent state of the thread I was working on).

I've had several crashes today alone.
Also, when subagents or other spawned threads are being run from the thread that crashes, it will lose their state as well, which is really a pain to clean up since it results in work being left in incomplete states.

What steps can reproduce the bug?

Reproduction steps are unknown. Right now, I have multiple projects, each with automation running every 10 min - 6 hours for at least 1 thread per project. Some threads have very long histories. I'm also using local MCP and a local plugin. I use a lot of skills. I'm not sure what else might be relevant. (I use a lot of subagents?)

I've been watching memory pressure pretty closely, so I don't think it's an OOME.

What is the expected behavior?

No crashing.

Additional information

_No response_