I have noticed in Inventor 2018 when you hover over a cylinder or basically anything round in an assembly it only highlights the actual edges. So a barrel only highlights the edges on the very end. This can make parts very hard to find. A sphere or ball is actually not highlighted at all. Previous versions of Inventor highlighted the entire outline rather than just the edges. I would really like to see this back.
I am not talking about enhanced highlighting. I do not like that either.