MobZ mobs continue to spawn in The Bumblezone, Deeper Down Dimension, void_type, the Yearning Canal, and the Communal Corridors (bumblezone mod, Spectrum, VoidZ and corners mod).
Custom spawns mod seems unable to disable this behavior.

I am noticing this as well. I have All those mods plus Space Dimensions. And I go into the Space DImensions and all the MobZ mobs are there sufficated because of no oxygen. A config option to blacklist biomes would be awesome :)

A config option to blacklist biomes would be awesome :)

Planned