If what you are saying is true, and I believe it, it is pretty bad if the sketchup developers can’t resolve this. I don’t consider .75 inch to be “really thin” and edges aren’t supposed to have “thickness” in Sketchup land. And yes I have them tagged and that is a workaround in this case maybe. It wouldn’t be if I wanted part of the trusses to be exposed.
Thank you for your quick answer, I don’t know if you are with Sketchup. Its time for Sketchup to get it together and fix some of these deficiencies if they want to stay relevant. A recent post and commentary from a lot of serious and loyal Sketchup customers: https://youtu.be/rb385302GzA?si=0LpRM1uQK7m4ORSz