In React, when a ref is passed to a component, that component must forward the ref to a DOM element using React.forwardRef. If the Stack component does not implement forwardRef, the ref will not be attached to the underlying DOM element, resulting in ref.current being null or undefined.

In React, when a ref is passed to a component, that component must forward the ref to a DOM element using React.forwardRef. If the Stack component does not implement forwardRef, the ref will not be attached to the underlying DOM element, resulting in ref.current being null or undefined. #414