When Attempting to use the /ss change "Mob Name" command you get the following. Unrecognized Creature name "Mob Name Here". Regardless of whatever mob type you choose. I am doing this while the mob spawner is in hand, and not placed if it can be done after the mob spawner has been placed still thats fine but with the risk of losing the spawner when re-harvesting it I have not been willing to test that yet. Any help with this problem is greatly appreciated.