Codex CLI hangs on Ubuntu during normal prompts

What version of Codex CLI is running?

0.117.0

What subscription do you have?

Pro

Which model were you using?

gpt 5.3 Codex, gpt 5.4 (fast for both)

Note: I am using 5.4 Pro with extended thinking on the web to solve some tasks, it does feel like when I am running these rather large tasks on the web, it slows down the speed of codex cli, not sure if this is an account throttling issue.

What platform is your computer?

Ubuntu

What terminal emulator and version are you using (if applicable)?

_No response_

What issue are you seeing?

Codex CLI hangs on Ubuntu during normal prompts. Started around March 28–29, 2026. After sending a prompt, Codex remains stuck (thinking/working) for extended periods

What steps can reproduce the bug?

1) launch codex 2) send prompt X 3) observe hang. Version: __. Ubuntu: __.Network: __. Frequency: __%.

What is the expected behavior?

_No response_

Additional information

_No response_