Bug issues no white tiger spawning and mobs dont aggro!

Game mode: [Online |
Problem: [Crash | Bug |
Region: [Here]

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White tiger boss refuses to spawn and all mobs do not aggro all the time. random mobs floating in air and double spawning, every since update. anyone else had the issue?, Fish traps not working correctly as well

Cant even spawn white tiger in admin panel!!! or NPC spawner