For Debug and Related Problems

I have two Plugins in My WordPress Website, One is WooCommerce Currency Switcher and Fancy Product Designer.

Now When I enabled the Currency Switcher, It work fine, but On Product Page Currency Symbol but Displays the Base Price.

E.G. If I set up Product Price 299INR as base Price convrert it to USD, It should display the $5 on Product Page, but it displays $299 instead. After adding that product to Cart it’s displays accurate Converted Values of Product Price like E.G. For 299INR >> $5

How to catch from where the Product Page is initiate / getting the Product Product via Debugging in WP?

I have contacted both Plugin Devs but they can’t Help as their Plugin works fine independently.

I’m New in Debugging, tried wp-debug but not understand so like to easy Guide or Step by step tutorial or video.