I cant access gpt 5.3 codex with codex plus plan, codex can access my project

Resolved 💬 3 comments Opened Jun 2, 2026 by amoszcz Closed Jun 2, 2026

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

26.527.31326

What subscription do you have?

plus

What platform is your computer?

windows

What issue are you seeing?

Last friday I bought plus subscription for codex:
https://chatgpt.com/pl-PL/codex/pricing/

Yesterday everything was working fine but today there are 2 problems:

  1. I cant use GPT-5.3-Codex model anymore. It looks like I can use only standard chatgpt models.
  2. Even standard models cant do anything in my project. They got error:

execution error: Io(Custom { kind: Other, error: "windows sandbox: spawn setup refresh" })

What steps can reproduce the bug?

Try to run prompt:
can you access shell commands? Try to run "echo ok"

What is the expected behavior?

It should run terminal command successfully.

Additional information

_No response_

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