Landscape material looks smudged after applying it,

Hi, I’m following Unreal Sensei tuterial and after applying landascape material that you create alongside him in the tutorial it looks funny, I went back to repeat the process but it remains the same, it’s my first tutorial in UE so im totally lost as to why it doesn’t work, PLEASE HELP ME! I’m adding ss to show you what I mean.

Looks like you have texture bombing going on, but haven’t set it up right. Try turning it off?..