Query Loop Sort by Custom Field

Having an issue with the code from this page: https://docs.generateblocks.com/article/order-query-loop-by-custom-field/

Here is what I have inside the Snippets Plugin:

//CHAR type custom field value
add_filter( 'generateblocks_query_loop_args', function( $query_args, $attributes ) {

    // apply filter if loop has class: order-by-priority
    if (! is_admin() && ! empty( $attributes['className'] ) && strpos( $attributes['className'], 'order-by-ambassador-state' ) !== false) {
       
        $query_args = array_merge( $query_args, array(
            'meta_key' => 'ambassador-state',
            'orderby' => 'meta_value',
            'order' => 'ASC',
        ));
    }
    return $query_args;
}, 10, 2 );

I have order-by-ambassador-state as the class for the grid inside the query loop.

On the front end, the loop is broken and doesn’t display.

Thanks,