Following are just 2 examples. What is so special about that garlic and the 2 healing pots?

Some of the void and caustic items you get from the ship also have this issue.

I think the item db and stacking need some clean up. I also see 2 types of whole chickens but one type with port shoulder icon. And of course, they don't stack.

And some scrolls will go to misc. tab, instead of magical.