Changing loottables doesn't work in some cases (version 1.2.3)

[3A70]

Removing "main" loot table and adding a new one doesn't work for dungeon tactics.

import com.cleanroommc.groovyscript.event.LootTablesLoadedEvent
import net.minecraft.world.storage.loot.LootContext

event_manager.listen { LootTablesLoadedEvent event ->
	Test(event)
}

def Test(event){
	event.loot.getTable('dungeontactics:loot_bags/food_bag').removePool('main')
	event.loot.getTable('dungeontactics:loot_bags/food_bag').addPool(
		event.loot.poolBuilder()
			.name('toptier')
            .entry(event.loot.entryBuilder().item(item('minecraft:diamond'))				.weight(1).build())
            .entry(event.loot.entryBuilder().item(item('minecraft:nether_star'))			.weight(1).build())
            .entry(event.loot.entryBuilder().item(item('minecraft:clay_ball'))				.weight(1).build())
            .entry(event.loot.entryBuilder().item(item('minecraft:furnace'))				.weight(1).build())
			.randomChance(1.0f)
			.rollsRange(1.0f, 2.0f)
			.bonusRollsRange(0.0f, 0.0f)
			.build()
	)
}

This is in postInit, groovy.log:

============  GroovyLog  ====  05.04.2025  ============
GroovyScript version: 1.2.3
[16:28:14] [SERVER/INFO] [groovyscript]: ========== Reloading Groovy scripts ==========
[16:28:14] [SERVER/INFO] [placeholdername]: Running scripts in loader 'postInit'
[16:28:14] [SERVER/INFO] [placeholdername]:  - running script postInit.test
[16:28:15] [SERVER/INFO] [placeholdername]: GroovyScript found 0 LootTable(s) named dungeontactics:loot_bags/food_bag
[16:28:15] [SERVER/INFO] [placeholdername]: Groovy scripts took 0ms to compile and 0ms to run in postInit.

Changing the loot table to something like minecraft:entities/chicken makes this same script work as intended.
The dungeontactics:loot_bags/food_bag loot table DOES exist.|

Modifying the same loot table with mod like LootTweaker does work.