Well, whatever is causing this, it permanently disables spawning, even if the mod is disabled. I'm going to try downgrading the mod, see if that helps.That might be a mod with a problem causing errors in cheatsheet. If you check the logs, maybe something there might help.
I'm not aware of this problem. If the mod isn't loaded, then there is absolutely no way it could be affecting things.
EDIT: Can't even do that, since there is only the latest download. <.<