Problem with NPC's casting spells

[Kupper1]

Hello, im creating a custom NPC, and i was trying to get it to cast spells from different classes, i managed to get it to cast 2 spells, but when i change the npc_spells_id to a different spell id, and repop the mobs they are still casting the old spells and not the new spells i changed to.

is this information stored anywhere else besides npc_spells_entries tab that im not aware of? Or does the server just need a reboot instead of just updating the DB, then repopping the mob?