When you open part properties & select a piece, then an edge and click "show this edge" it highlights said edge in red on your 3D product. However this doesn't work sometimes most of the time. You have to close part properties, redraw the product, & even change the angle you're looking at it from sometimes then try again. Sometimes this doesn't even work, we find ourselves often closing down MV completely, reopening it, loading the project & the room again, just to get the function working properly. It's a valuable & important feature that we use all the time, a lot during the nesting process. Is this happening to anyone else out there? Is there a fix or anyone know of a reason why it's happening in the first place? It turns what would be a simple 30 second task into a vexing 5 minute trial and error drag of disappointment and frustration :'(