What's wrong with this decal?

[Roadmaster259]

I created a decal of rock texture using the Blueprint editor. It was successful, except to say that it does not show up correctly in the sim. For some reason there is an overflow around the decal and I do not understand why it is there, or how I can get rid of it.

The image attached was taken on a perfectly flat surface of terrain. So, what's with the over-spill? Any help would be much appreciated.

[bnsfsubdivision]

Is it fine when you hit play and jump out of the editor?

[Roadmaster259]

Is it fine when you hit play and jump out of the editor?

No. It remains the same in play mode, as seen in the picture attached. As you can see, the problem occurs with any texture. The baseball diamond in this photo is all weird, too.