Unity Collider Not Moving With Parent Now

If both the parent and child have a Rigidbody, they act as . While they may look connected in the editor's Transform hierarchy, the physics engine treats them as two separate objects that do not automatically move together.

Unity classifies any object with a Collider but as a "Static Collider." The engine assumes these won't move and caches them for performance. If you move a parent that has only child Static Colliders, the physics system might not update their positions in real-time. unity collider not moving with parent

Remove the Rigidbody from the child object. This makes the child collider part of the parent's "Compound Collider". If both the parent and child have a Rigidbody, they act as