Magento 2 - Related products not showing

Question

I try to show "Related Products, Up-Sells, and Cross-Sells ". All of them work, but "Related Products".

I thought there must be something wrong with the products which I have assigned to Related Products. So I assigned the same products which I have assigned to the working "Up-Sells", but there is still nothing showing.

I also checked out Magento Blank and Magento Luma Theme and cleared the cache. But there is still nothing.

I am using Magento 2.3.4.

Answer 1

I figured it out. We use the extension Aheadworks_Wbtab which brings an own slider with "who bought this also bought". It was set to replace the "Related Products" slider.