Hey Franked! I am on WP version 5.7.3 and with the previous version of the theme and the previous version of Woocommerce it is working fine. Only when I updated theme, core and woocommerce did it start failing. The front end of the site just would not load to begin with, then the shipping options all disappeared and I had this weird issue when they returned where the cart would not update unless you refreshed the page.
What issues did you have out of interest?