What do I do if Page Composer closes while I am navigating in the UI?

If you're using Page Composer in Design mode and trying to navigate between different objects in the application, the Page Composer sometimes closes. That's because it's designed to configure one object at a time.

When you no longer see the Page Composer bar at the top of your screen, simply restart Page Composer. Your previous work is preserved in the active sandbox, so you don't have any data loss.