Antlion overload doesn't drop soul crystal

[Porcy]

I'm trying to understand the "learning mechanic" from this mod. I realized that the Erebus Antlion doesn't drop its soul crystal when using Woot. I left my farm run a little while to allow Woot to "learn" this mob. It didn't happened :/
In the wiki, it says you need available space at bedrock level under the woot farm to let it "learn" what drops from a given mob. My question is : "What happens in a void world? (I.E: I'm playing Project Ozone 3)" Do woot need bedrock for learning to happen?
Thanks in advance for your time.

[Ipsis]

The bedrock requirement is for a very old version of Woot. The more recent (1.12/1.14/1.15/1.16) all use a different dimension for loot learning.
Some mods also cause issues, for example if during learning the act of killing a mob spawns some other ones. I think I had to blacklist a lot of Erebus mobs in older versions of Woot and added custom drops for specific ones like the Antlion.

eg. #358

Which version of Woot are you using?