Ajax buttons not working properly in WooCommerce when using wc_get_template_part

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The answer was that I had dequeued the woocommerce style sheets and fonts, adding the CSS back in made the tick marks appear

.added:after {
    font-family: WooCommerce;
    content: '\e017';
    margin-left: .53em;
    vertical-align: bottom;
    display: inline-block;
}