No installer cached when using --update argument

[rhype]

I can't cache the macOS installer using /Library/Management/erase-install/erase-install.sh --update, even though softwareupdate --list-full-installers shows that there are available installers. I remember this working in the past. Has something changed? Please help?

This is what I see:
/ % /Library/Management/erase-install/erase-install.sh --update
2025-12-15 16:33:34 | v40.4 | [log_rotate] Not running as root so cannot rotate logs

2025-12-15 16:33:34 | v40.4 | [erase-install] v40.4 script execution started: Mon Dec 15 16:33:34 EST 2025

2025-12-15 16:33:34 | v40.4 | [erase-install] Arguments provided: --update
2025-12-15 16:33:34 | v40.4 | [set_localisations] Set language to en-US
2025-12-15 16:33:34 | v40.4 | [erase-install] System version: 15.7 (Build: 24G222)
2025-12-15 16:33:34 | v40.4 | [check_for_swiftdialog_app] swiftDialog binary v2.5.6.4805 is installed (/Library/Management/erase-install/Dialog.app/Contents/MacOS/Dialog)
2025-12-15 16:33:34 | v40.4 | [check_for_swiftdialog_app] Creating dialog log (/var/tmp/dialog.g7e)...
2025-12-15 16:33:35 | v40.4 | [erase-install] jq is installed, proceeding with --native mode.
2025-12-15 16:33:35 | v40.4 | [erase-install] Not running as root so cannot continue.
2025-12-15 16:33:35 | v40.4 | [finish] Script exit code: 0