This same thing happened to me. An enemy force-removed it by equipping another cursed item in its slot, and I later equipped it to a completely different character. It worked on the new character... not sure what caused it, but I think it's character-related. You can remove it with the Church, if you have that unlocked.not sure why but my crown of loyal bunny's spank counter does not count when i spank the wearer... do i miss something? (i want to break its curse)