Playing the FOOLCRAFT modpack and i noticed my withers wern't droping the correct lootbags and netherstars they were supposed to.. did some digging and they work fine in a regular forge Server and in Sp i'm guessing this is a spongeforge issue and i'm going to report it there aswell

I'm having this issue myself, I have not performed tests with bare-bones mods just yet, but it seems not having Sponge installed allows chests to populate on servers.

I have more information regarding the issue on my pack's repo here

Sounds like Sponge isn't firing the LootTableLoadEvent. LootTweaker depends on this event to work, there is no other way to modify loot tables. I'll have a look this weekend and see what's going on.

@tyler489 Does this bug still occur?

I'll take that as a no

Dont know we shut down the modpack a while ago

@tyler489 In cases like that, the issue should stay open, as it may still exist. I'll do some testing myself if I can.

@Time6628 Do not hijack another issue just because it is vaguely similar to yours. Create a new issue.

2 years late, but better late than never. Finally got around to testing this out myself. SpongeForge servers work fine with LootTweaker.