1. new project
2. import mapmagic2 & Biomes & HDRP
3. open TutorialHDRP scene
4. change map magic graph to Biomes
5. look like something wrong with terrain
Unity HDRP terrain shader supports only 8 textures. Biomes scene uses 12 (4 channels in each of 3 biomes). So one of the biomes is displayed as black, and I'm afraid there's nothing I can do about it - HDRP terrain shader is part of Unity, not MM.