Incorrect Tessellation / Bad Landscape topology

I’ve been stuck on this for a few days now. It seems that my landscape’s topology is messed up and is causing the tessellation to come out weird : Imgur: The magic of the Internet

And this is my landscape topology without tessellation enabled : Imgur: The magic of the Internet

I’m fairly certain this is not an issue with my displacement material, but here it is anyway : Imgur: The magic of the Internet

I’ve tried messing with the tessellation parameters, landscape LOD distribution and making an entirely new landscape but nothing has worked so far and google searches constantly lead me to unrelated subjects; i’m utterly lost. Thanks to whoever is willing to help.