Yeah I ran into that little joy myself but I knew it wasn't a bug and as soon as the PZ3 started "Looking" for things I knew I'd forgoten to add the runtime for it to search. 

As I said in Ziggie's thread, the double named lights was also something that happened in previous Posers. You just learn to save your light set and delete all lights before importing the file you want to merge. It's not really a bug so much as on oversight in workflow. Well it might be a bug if they didn't intend for it to work this way, but who knows the mind of the programmers these days? Not me!

Wonders off singing "I'm a little Tea Pot, Short and Stout....."