Codex Cannibalizes Scrollback in Zellij

What version of Codex is running?

codex-cli 0.23.0

Which model were you using?

gpt-5

What platform is your computer?

Linux 6.16.0-2-cachyos x86_64 unknown

What steps can reproduce the bug?

Use codex in zellij and scroll up

What is the expected behavior?

The rest of the text should be visible when you scroll up in the terminal.

What do you see instead?

The conversation above the currently rendered window is deleted as the model produces more text. In the top right corner, I can see the total length of the scrollback is not increasing when it should as more text comes in.

Additional information

I'm also using Alacritty, but it replicates on other emulators too.