I have two points (vectors, right?) that are in the same place, but attached to different faces. I’d like to merge them together, so moving the one vector modifies both faces (instead of having to select both to avoid creating an empty space). I tried selecting both of them, hitting Alt+m, and selecting “Center” and it told me that one vector was removed, and when I tried moving that one vector it seemed to have worked, but when I select another vector and then go back to the other one, there’s two again.
Is that not how you’re supposed to merge two vectors?