Why is my terrain is missing part of its textures?

I’m running into another issue with my environment in Unreal. I am texturing the landscape using layer blends and somewhere down the line, about three or four squares in the environment lost their textures. Can someone explain what happened and how I can fix it? Below are screenshots of my terrain, shader, and their settings.


Terrain Settings: Part 1 Part 2


Shader Settings: Part 1 Part 2 Part 3 Part 4

Try making each texture sample Shared:Wrap

I did that and it solved it! Thank you!