Polygon Collider 2D not working

Unity Engine
1

I am trying to add an edit a polygon collider on an object but the only function of editing it that works is the x,y offsets and CTRL clicking a vertex to delete it. I can not increase its size or in any way resize it. I have read the unity manual on it and nothing it states effects the collider at all except CTRL clicking a vertex.

Thanks,

2

Set gameobject scale as 1,1,1(default), you can also click reset option on transform component.