What causes this Codex error?
OpenAI Developer Community
March 10, 2026
Codex crashed with the following error:
(code=3221225781, signal=null).
Most recent error: None
Some things to try:
* Check your config.toml for invalid settings
* Check your settings to disable running in WSL if you are seeing compatibility issues
* Try downloading a different version of the extension
Click reload to restart the Codex extension, or visit our documentation for additional help.
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