Basicly im in 1.19.2 better minecraft mod pack and i killed 2 nagas and they dropped nothing both times. Ive killed most mobs and they all dropped somthing but when i kill the naga nothing drops. I dont know if it will happen with other bosses but any ideas?

It spawns the drops in a chest, which will be either where you killed the boss or where it spawned (in the center of the courtyard)