Conflict with LootTweaker causes loot tables defined by mod to not generate on SpongeForge servers

[zediious]

Version

7.4.7

Operating System

Windows

Java Version

jre1.8.0_251

Plugins/Mods

None while testing this problem

Describe the bug

Loot tables defined with LootTweaker do not appear in chests on multiplayer servers that have SpongeForge installed. Testing on a normal Forge server results in the mod working correctly.

To Reproduce

Steps to reproduce the behavior:

I've tested this using my modpack, although you can of course test with whichever setup you have. If you want to use the same setup, here is the latest release

1. In singleplayer with cheats enabled, use /setblock ~ ~2 ~ minecraft:chest 1 0 {LootTable:"gdtable:hilund"} and see the loot table populate the spawned chest. One can also find or spawn a WroughtBuilding recurrent complex structure.
2. Doing such on a multiplayer server with SpongeForge installed results in no items.

Expected behavior

The chests to be filled with loot. The loot tables are generated properly within the server world at /world/data/loot_tables, and CraftTweaker reports no errors from the script, so I cannot understand why they are not called and populating the chests.

Link to logs and relevant scripts

Server latest.log: Check line 3590 https://gist.github.com/zediious/19743d52cb5dec58478536fd1732103e

Server debug log: https://gist.github.com/zediious/dd62f3b0ae22d281fb352c60e7c5a351

Chest Loot Craftweaker Script: https://github.com/zediious/galacticdrive/blob/0.2alpha/overrides/scripts/chestloot.zs

Server Crafttweaker Log: https://gist.github.com/zediious/50df74e839a0d0c901414920de9d1c08

[Daomephsta]

LootTweaker creates tables when net.minecraftforge.fml.common.event.FMLServerStartingEvent is fired.
Perhaps this is too late to work on a SpongeForge server?