Codex flickering issue on running "npm build" via it

[nxcreate]

What version of Codex CLI is running?

codex-cli 0.125.0

What subscription do you have?

Pro

Which model were you using?

gpt-5.5

What platform is your computer?

No response

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

Termux

What issue are you seeing?

Codex terminal flickers/re-renders repeatedly when running npm build after sandbox access is granted.

What steps can reproduce the bug?

Steps to reproduce:

1. Open Codex terminal/workspace.

2. Load a Node.js project (React/Vite/Next app).

3. Ask Codex to run:
   npm run build

4. When Codex requests sandbox access/permission, click Allow.

5. Let Codex execute the build in its terminal.

6. Observe terminal output starts flickering/repainting repeatedly (appears stuck in refresh loop).

Repro frequency:

• Happens every time / intermittently (choose one)

Expected:
Build runs once and exits normally.

Actual:
Terminal flickers repeatedly and build appears stuck.

What is the expected behavior?

No response

Additional information

No response