Kristjan

ajax-search.php seems to have several vulnerability issues:

$args[‘s’] = trim( $this->request[‘query’] );
$args = apply_filters( ‘etheme_ajax_search_posts_query’, $args );
return get_posts( http_build_query( $args ) );

$query = trim( $this->request[‘query’] );
$args[‘s’] = $query;

query is coming directly from $_REQUEST[‘query’]
It is used in http_build_query($args), which constructs a query string
The search query is passed directly into get_posts() without sanitization
Potential SQL Injection if query is manipulated in a certain way
etc.

They key is that you have more items in cart than there are in stock. Then the update stops working.

In your video you just change the quantity in cart, but you DO NOT decrease the amount in stock!

You are not testing the scenario I have been showing you in 2 videos and in my description.

Here is another video.
Brand new WP install with only woocommerce, elementor and your theme.

Just test it here: https://xstore.8theme.com/elementor2/industrial-power-tools/cart/
99.99% sure, they same thing will happen.

Well, I changed other plugins active, that is why there are restrictions.
Test it with your own simple plain install and you probably get the same results.

Storefront does not have Ajax updating the cart automatically, but it has update cart button and it works just fine.
Btw. when I added same button with your theme using functions.php, it did not work.

function add_update_cart_button() {
    // Check if we're on the cart page
    if ( is_cart() ) {
        ?>
        <div class="woocommerce-cart-form__update-cart">
            <button type="submit" class="btn button<?php echo esc_attr( wc_wp_theme_get_element_class_name( 'button' ) ? ' ' . wc_wp_theme_get_element_class_name( 'button' ) : '' ); ?>" name="update_cart" value="<?php esc_attr_e( 'Update cart', 'woocommerce' ); ?>"><?php esc_html_e( 'Update cart', 'woocommerce' ); ?></button>
        </div>
        <?php
    }
}
add_action( 'woocommerce_cart_actions', 'add_update_cart_button' );

I have to clarify myself. The product has a cross-sell product which has been deleted, so it does not show up, but the header/title still does.

Sending a video, maybe you can make something out of it.
As you can see settings to leave reviews are turned on, there are product reviews, but they are not showing anywhere.

I do not use page builder, but when I tried, it made no difference.
Most third party plugins, including all cache plugins were turned off.

http://www.hilo.ee/files/suutervis.mp4

Thanks! It is working now.

Sending info
You can use “SINUTH10” as a coupon code.

Well, it helped with popup calculation. But after applying coupon, it still calculates incorrectly even after refreshing the page.

Sorry, wrong URL

Sending the video.
It seems like only the last change is kept and rest is set to default value.