Anyone else having trouble with the MCCC "MOO always on" cheat?

I've had MCCC set up for ages to have MOO always on, but a couple of days ago it stopped working. It's driving me crazy to have to keep typing it in. I do have other mods in my game, but nothing that I've installed in the last couple days that should conflict. Anyone else having this issue? The rest of MCCC seems to be working as normal.