Hello, on my landscape material in Unreal Engine 4.8.0, I have this very strange line which shows up. I am one hundred percent sure that it is something wrong with the landscape material because I tried to apply just one material to the landscape, and no problems arises with that. The strange lightning line can be found between the two blue lines I have drawn on the screenshots:
I have tried searching everywhere for a similar error, but I could not find it elsewhere. I hope someone can point me to the fix for this.