'/ps' not showing expected background terminals on Windows

Question

### What version of Codex CLI is running?

0.118.0

### What subscription do you have?

Enterprise

### Which model were you using?

gpt-5.4-codex

### What platform is your computer?

Microsoft Windows NT 10.0.20348.0 x64

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

VSCode PowerShell

### What issue are you seeing?

Using command '/ps' on Windows showing `No background terminals running.` while there is background terminals running.

### What steps can reproduce the b