I just installed Better Loot, primarily so I could blacklist items, and one of the items I blacklisted just showed up in a heli crate. So what gives?

please check in the /betterloot/LootTables.json file that the
"assets/prefabs/npc/patrol helicopter/heli_crate.prefab"  enabled is set to true  ( it is false by default )

bradley crates "assets/prefabs/npc/m2bradley/bradley_crate.prefab"  is also set to false by default

Does it not replace blacklisted loot with other loot? My players get empty crates, I am assuming because I blacklisted MLRS items and that is what would have been in the crate.