Hello thank you for your review, the plugin is 100% compatible with latest WooCommerce and WordPress versions.

From what i read on your support request here : https://wordpress.org/support/topic/cant-see-related-products-result/
is obvious to me that you didn’t configure the plugin , also you mention that plugin works fine in sidebar but the plugin doesn’t effect the sidebar at all.

Anyway i will try to help you there.
Thank you.