Codex doesn't work properly after resuming from being sent to suspend #26564

What version of Codex CLI is running?

codex-cli 0.137.0

What subscription do you have?

Go

Which model were you using?

gpt-5.5

What platform is your computer?

Linux 7.0.0-22-generic x86_64 ubuntu 26 Lts

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

gnome terminal, kitty

Codex doctor report

What issue are you seeing?

When I login to a machine and start codex, I often need to check something on the terminal. i send suspend to send codex to the background. when i bring it to the foreground it comes unresponsive or just broken unprocessed ANSI escape codes:

f^[[102;1:3ug^[[103;1:3u

sometimes it detects my kill signal, otherwise i need to login again and kill it.

these are the flags im setting:

[features]
apply_patch_freeform = true
plan_tool = true
rmcp_client = true
streamable_shell = false
unified_exec = false
view_image_tool = true
experimental_windows_sandbox = true
parallel = true
terminal_resize_reflow = false

What steps can reproduce the bug?

1. open codex
2. send suspend ( ctrl+z )
3. bring it back ( fg )
4. type anything, i get broken ui

What is the expected behavior?

being able to resume chat

Additional information

No response