Not sure what else to say, but it doesn't work.

Trying to get rid of a specific Lycanite's Mob. Here's my config file for your mod.

The entity name is verified as correct.
I want to disable that mob since it's currently crashing my game on render, so I disable it everywhere (eggs and spawners incuded). But the mob still spawns in a vanilla spawner.

Unfortunately some mods use custom spawning mechanics that can not be prevented by the mod. In some versions there is a "remove aggressively" or "killmode" config option which can be used to remove them the moment they spawn into the world.