ChickenNuggets

i am using minecraft forge 10.13.2.1230 - 1.7.10 and i also tried 10.13.2.1236 - 1.7.10 and theres no snow in the taiga biomes at all but theres snow in highlands/extreme hills. also mobs dont spawn in the taiga biome. (even tried pixelmon and their mobs wont spawn in the taiga) i tried removing all mods and fresh install and it still does this