With the addition of cave spawning pkmn (they spawn based on elevation), a huge issue with your map has come up. Now Zubat/Golbat CONSTANTLY spawn/despawn because of the general low elevation of the map. My suggestion would be to try and use a program to elevate the surface up significantly higher, else it makes playing this map with Pixelmon a huge pain.
With the addition of cave spawning pkmn (they spawn based on elevation), a huge issue with your map has come up. Now Zubat/Golbat CONSTANTLY spawn/despawn because of the general low elevation of the map. My suggestion would be to try and use a program to elevate the surface up significantly higher, else it makes playing this map with Pixelmon a huge pain.