Landscape Material not lighting correctly.

I used this exact same material last week to create a scene and it worked fine. Now when I try to do a new terrain I get a circle of light around my camera that moves as I pan around the terrain. Changing the rotation of the light doesn’t really do much. I have created scene’s for years and never had this problem. If I pan my camera higher off the terrain it actually fades to black. I can’t figure out what is causing this I posted screenshots and hope they help.