Sounds not generating in Generated MM Resource Pack

I have 3 sounds with the path Assets/sounds/entities/ufo/sound1,sound2 and sound3 but whenever I generate the resource pack it only shows 1 sound inside the sounds.json and thats "null"

{ "null": { "category": "master", "sounds": [ "mythic:entity/ufo/bells" ] } }

Im using:

MythicMobsPremium-5.5.2-SNAPSHOT.jar Build 4892

MythicCruciblePremium-2.0.0-SNAPSHOT.jar Build 3816 · 2023-12-22