Codex CLI TUI accepts prompt but renders no assistant response on Linux (exec works)

What version of Codex CLI is running?

codex-cli 0.111.0

What subscription do you have?

Bussines plan

Which model were you using?

gpt-5.4

What platform is your computer?

Arch Linux x86_64, kernel 6.12.x-lts

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

Alacritty Also reproduced in PyCharm integrated terminal

What issue are you seeing?

Interactive codex accepts the prompt but shows no assistant response.
codex exec --json "responde solo con: hola" works and returns:

• thread.started
• turn.started
• item.completed with "hola"
• turn.completed

What steps can reproduce the bug?

1. Run:

codex --no-alt-screen "responde solo con: hola"

1. Observe the prompt appears in the thread
2. No assistant response is rendered

What is the expected behavior?

• codex login status OK
• codex exec --json works
• disabled features:
• shell_snapshot
• unified_exec
• reproduced both inside PyCharm terminal and outside in Alacritty

Additional information

Expected behavior
Assistant response should render in the TUI

Actual behavior
No assistant response is displayed, although exec mode completes successfully