I have updated the AI module to 1.4.2 on two sites and in both instances the admin menu item for "AI agents" was relocated to the top of the admin menu tree (no parent) and therefore no longer appears on /admin/config/ai (unless you manually move it back.) I was going to put this into the AI Agent issue queue, but I'm pretty sure it was the 1.4.2 update of the AI module that caused it... -mike