thx that fixed it! 
Similar issue, tried all of the above, stuck here and unable to submit text. Codex works in VS code on one of my machines, but have this exact issue on two other machines. Tried reinstalling, deleting all .codex folders, etc. Still stuck and unable to submit any text after logging in.
Guys maybe you should try to install cli first by using: npm install -g @openai/codex and use “codex login“ to login first. Then you will be able to directly open the codex extension in vscode. At least it works for me.
That worked for me too! Thank you!