New scripts not appearing in Google Home app

I’ve just removed and re-added my Google Assistant integration (HA Core 2022.10). I can now set up voice activation for my existing HA scripts from the list of Scenes in the Google Home app (each script is listed as a Scene). The problem is that if I create a new HA script (then restart the HA server) the new script is not listed in the Google Home app.
What do I need to do to pick up new scripts?

Ask Google to “Sync Devices”

Perfect - many thanks!