I’m having trouble with vertex snapping in UE 4.9.
The case was much simpler in 4.7 where I’d MMB + V on the pivot point to a vertex on the object and then LMB + V to snap that object to another.
I’ve realised that in 4.9 temporarily changing the pivot point is now Alt + MMB, which works normally but when I want to snap it to a vertex, the V key doesn’t work at all. LMB + V still works fine.