Why the widget on the sidebar would display related products like this?

I can see that the coders have tried to fix the issue.
For the widget as shown, at first I selected to show the recent products and it worked perfectly, however when I selected the related products to show then it did not work out as shown in the attached photo. Also I would like to do 2 additional things:

1. Remove the "Related products" section at the bottom of the single product page
2. fix the widget to show "Related products" in a vertical way and make it "vertically slidable"

Hi Bonhamwest
Please choose a different value( you are chosing Target= Products Related ), because by default on the product page there are already related products that's why it's missing. Please check your setting again
Regards,
Maason