Blueprint "World position offset" in material don't apply to editor in UE4/4.22?

I use a basic object “Plane” mesh in editor,and set the material I created.

I did a simple material and I can see the change on material ball of preview. But in editor it’s not.

All of the material is following a videob to do, and in the video it works very well.
Maybe in 4.22 version I need do something else?
Does any one know how to complete it?

It is because the number of vertices is not enough, so there is no change in the viewport. I used 3dmax to create a thin cuboid with multiple vertices, it works very well.