I don't know what causing it, as I don't see any config options in the TOML file for the building outside of enabling or disabling the spawners within it, but the Monster Masher building seems to be missing from my installation of this mod. Seeing as I just installed it and didn't make any changes to any config files, and the latest changelog mentions it, I'm not sure what happened.
Minecraft Version
1.16.5
Forge Version
36.2.8
Mod Version
1.6.5.14
Details
I don't know what causing it, as I don't see any config options in the TOML file for the building outside of enabling or disabling the spawners within it, but the Monster Masher building seems to be missing from my installation of this mod. Seeing as I just installed it and didn't make any changes to any config files, and the latest changelog mentions it, I'm not sure what happened.