Issues with AIO - Custom Field Text in a group

I have a text field, that goes into a product. everytime i press update, a new field appears with added

["[\"[\\\"[\\\\\\\"Bresaola\\\\\\\",\\\\\\\"Roasted Red Onion\\\\\\\",\\\\\\\"Shiitake Mushroom\\\\\\\",\\\\\\\"Cais na Tire\\\\\\\"]\\\",\\\"Bresaola\\\",\\\"Roasted Red Onion\\\",\\\"Shiitake Mushroom\\\",\\\"Cais na Tire\\\"]\",\"Bresaola\",\"Roasted Red Onion\",\"Shiitake Mushroom\",\"Cais na Tire\",\"[\\\"Bresaola\"]","[\"[\\\"Bresaola\\\",\\\"Roasted Red Onion\\\",\\\"Shiitake Mushroom\\\",\\\"Cais na Tire\\\"]\",\"Bresaola\",\"Roasted Red Onion\",\"Shiitake Mushroom\",\"Cais na Tire\"]","Bresaola","Roasted Red Onion","Shiitake Mushroom","Cais na Tire"]

within

<?php
$group = rwmb_meta( 'pizza_ingredients' );

// Field pizza_ingredient_name:
echo $group[ 'pizza_ingredient_name' ] ?? '';
?>