Visible edges in IDW

[MarkSutcliffe]

I have a fillet that is not showing up on my IDW (on the top of the slot shown below). I have hidden lines included in the view. Did not help. I need to have the fillet noted in the drawing, so I have created a sketch to fudge it in. I also was unable to project the fillet in my sketch. While the sketch is a solution, it is sloppy. I would like to know how to do it properly. 

This model (with fillet)

looks like this on my IDW (without fillet). 

Any tips on what I am doing wrong? Thanks!

[mcgyvr · Accepted solution]

edit the view.. go to display options tab and turn on tangent edges