The texture looks blurry

The textures look blurry

Massive World uses multiple heightmaps which are loaded in the editor, because of that it tends to load your texture memory size and make your editor texturing look blurry. You can fix that by clicking on the "Increate Texture Poolsize" button in the Extra section of the editor.

Note that this will not affect during play mode or in a build as the heightmaps are removed from the scene without affecting your terrain.