This is something that confuses me from time to time. See the image below. There's a quad with a couple of extra verts half-way along it. I've circled the two verts I've selected: If I try to Connect Vertices on these two verts, it doesn't create an edge between the two. So I'm just curious what I'm missing about Connect Vertices if it doesn't connect them? What are the conditions needed for two verts to be connected?