In the Overworld there are not spawning hostile monsters. I checked all configuration files: "server.properties", "cauldron.yml", "bukkit.yml" and i checked the gamerule "doMobSpawning" in Minecraft itself. Normal Animals are spawning correctly and hostile Monsters are spawning in every other dimension like the nether, the end and other modded dimesions like "Twilight Forest" in Feed The Beast.
In the Overworld there are not spawning hostile monsters. I checked all configuration files: "server.properties", "cauldron.yml", "bukkit.yml" and i checked the gamerule "doMobSpawning" in Minecraft itself. Normal Animals are spawning correctly and hostile Monsters are spawning in every other dimension like the nether, the end and other modded dimesions like "Twilight Forest" in Feed The Beast.