I am following the tutorial for Creating a Lowpoly Concrete Barrier.
At about 29 minutes and 4 seconds he begins snapping the first two pieces of the texture in the UV map. I believe I have the settings the same and I managed to get the first vertex to vertex to snap. However when he snaps the right side it is multiple vertices to one vertex and the image seems to move instead of growing bigger (hard to tell b/c he is zoomed in).
The image below is the point I get to:
...however every time I try to snap this ends up happening (one vertex gets pulled and snaps versus all vertices moving and the lowest one snapping:
I have spent the last hour trying to find how to do it how he did in the video and I'm at a point where it's just become frustrating, but I don't want to give up. What am I missing? Thanks.