Hey guys, setting up a new server, we have prebuilt town with extra bonuses for capturing them. One is a mob grinder for cows so that towns bonus is beef and leather. It was working fine, then randomly logged in and now we cant get our spawners to spawn cows or pigs but they will still spawn zombies or skeletons We have the properties set to allow animals, and we are able to manually spawn cows.. any clue what could be wrong with the spawner?? Any help would be greatly appreciated! Thanks.