Blotchy ground

[Guidos]

Hey all, Im running some tests on a standard small island build with a standard alpine meadow biome. Previously they came out lush with lots of green surface vegetation but the last few have ended up with just a sandy texture and dark blotches appearing as I run around the surface.

Any suggestions for how to trouble shoot this? maybe in the set up somewhere?

Thanks

[Bryan]

You would need to adjust the spawner rules for texturing. 
I suggest turning on the visualization of the spawning and adjusting the rules so you can see the changes in real time. 

[Bryan]

Important note is textures are based on height.