Hello,
Try to add the following PHP code snippet to the child theme functions.php file to fix this
add_action(
	'rocket_exclude_css',
	function ( $excluded_files ) {
		$upload   = wp_get_upload_dir();
		$basepath = wp_parse_url( $upload['baseurl'], PHP_URL_PATH );
		if ( empty( $basepath ) ) {
			return $excluded_files;
		}
		$key = array_search( $basepath . '/elementor/css/(.*).css', $excluded_files, true );
		if ( false !== $key ) {
			unset( $excluded_files[ $key ] );
		}
		return $excluded_files;
	}
);
Kind Regards