Just started messing around with textures in zero editor, messing around with how things look. I close the program to see how it looks in game, looks fine. When I go back into zero editor I get it looking like this
any idea what exactly is going on here ?

But it still looks fine in-game, right? Just make sure you don't have more than three terrain textures overlapping each other in any given spot.

Seems to be fine in game still.

Hm maybe turn on and off Solo Texture tab on the left side.

I ended up scrapping the level anyways sadly, something I did kept the thing from launching at all.