Could you please check how it works with some default WordPress themes like TwentyTwenty or WooCommerce Storefront to understand is it our theme issue or not?
The problem seems to be rooted in the theme. I couldn’t replicate the issue with a different theme. It always occurs when, for example, I change the number of products or apply a coupon, so when the shopping cart updates. Perhaps an Ajax issue?
Please, disable all plugins that are not related to our theme and provide us with your admin access. We will log in and check what is wrong there. You can leave only the following plugins that are required for our theme:
WoodMart core
WooCommerce
Elementor/WPBakery page builder