Selections not Working

[Razick]

I am trying to rename an NPC, call him Bob. There is another NPC also called Bob (they are copies) and this second one is selected.

I type /npc rename John and his name is successfully changed to John. That's all good.

The problem is, when I try to do the same with the other Bob, I type /npc select while standing next to him (I've tried using his ID as well) and get the message "You selected Bob!"

However, when I type /npc rename John it says "You must have an NPC selected to execute that command."

Is this my fault? What am I doing wrong? I tried reinstalling both Citizens and Denizens.