thanks.
I really never heared of this picking problem. But if I was you I'd isolate the problem as much as possible.
Create a cube, use copyentity a dozen times or so and check if they can be picked. No types and things, a very simple, short code.
If it turns out picking works then it may be a bug in your code, often a typo or so.
You may also try to set the pickmode on the first mesh, then copyentity it and see it the pickmode was copied too.
I really never heared of this picking problem. But if I was you I'd isolate the problem as much as possible.
Create a cube, use copyentity a dozen times or so and check if they can be picked. No types and things, a very simple, short code.
If it turns out picking works then it may be a bug in your code, often a typo or so.
You may also try to set the pickmode on the first mesh, then copyentity it and see it the pickmode was copied too.