Placing one of the mod's entity blocks by /setblock command or modifyng the data with the tag {LootTable:" any loot table path "} won't work and the container will always be empty. Also the same behavior is observed when placing one of the containers by hand with nbt value of {BlockEntityTag:{LootTable:" any loot table path "}}.

The mod is really cool and would be awesome if it supported loot table generation!

I just extend the class, if it does not work then idk what to do