I have same issue with ocelots. For me switching back to snapshot 13w17a fixes the problem, ocelots despawn with time, switching to 13w18abc makes them spawn in large numbers again.
Paweł Tomak
I have same issue with ocelots. For me switching back to snapshot 13w17a fixes the problem, ocelots despawn with time, switching to 13w18abc makes them spawn in large numbers again.