Mobs not spawning

i already asked in the dedicated discord for calamity community remix but i still have not gotten any help and IDK where else to ask, the mobs from special biomes or events are not spawning in my world, the plagued jungle and the astral biome variant (idk the name) are always empty even if i go in journey mode and up my spawn rates, same with events like the pandemic panic, no mobs at all, everything else works fine, the mobs added by the mod spawn as normal in the vanilla biomes and events, IDK what the issue is.
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