Shipping classes can be utilized to gathering results of comparable sort and utilized by some shipping techniques, for example, Flat Rate Shipping, to give distinctive rates to various classes of item.
If you are facing any type of Shipping Classes Problem on your WordPress based site pls contact me i will fix it.
I can setup and handle below all types shipping classes in Woocommerce:-
Bundle/Group Products Shipping
Note:- Pls contact or discuss your problem with me before to place order