Testing with the latest update and the prior one reveals something to have broken basic KubeJS scripts to hide items in JEI of all things. I don't exactly know how to explain it besides try

Loading up a basic client script with

onEvent('jei.hide.items', event => { 
	console.log('Hiding Stick in JEI');
	event.hide('minecraft:stick')
})

reveals a script that works with Alex's Mobs 1.17.5, but not 1.18.2

seems to have been related to the empty NBT tag bug that was in the last version, as of now it appears to be working as intended :)