A sewing cabinet often has a drop leaf or lift mechanism for the machine along with several drawers, and both of those moving parts are what fail if the cabinet is moved fully loaded and unsecured.
Pro tip: Photograph how the machine sits in its lift cradle before removing it so reinstalling it later is straightforward.
Watch out: Never move a sewing cabinet with the machine still lowered into its well and the leaf unlocked; the added weight combined with an unsecured leaf is a common way the hinge breaks.