Error in 6.3 with blocks

Hi, I have an extend option for blocks that allow add some classes to blocks to animated them. This functionality works fine in 6.2 and previous versions.

In 6.3 I getting the next error in block with render.php: Error loading block: Invalid parameter(s): attributes. Whit others block works normally.

Here my code where error is:

export const attributesToAdd = {
	animate: {
		type: 'string',
		default: '',
	},
    delay: {
		type: 'string',
		default: '',
	}
};

/* Add attributes to block attributes. */
const addClassAttributes = (settings) => {
	
	return{
		...settings,
		attributes:{
			...settings.attributes,
			...attributesToAdd
		}
	}
}
addFilter('blocks.registerBlockType', 'jupa-bs/animate/list-block', addClassAttributes);

Thanks for any help or advice.