A little problem
 

Here's what happens:
I request for a class implimentation, and execute a function from it...
But it breaks, saying the function does not exist.
So I refresh, and it works.
Basically -- The class template isn't added immediately.

"request for a class implimentation" - can you explain that better? You join a class, on clientside or serverside?

Clientside Join.

That's normal, it can take a few moments until the class is loaded.

Is there a way to know when the clientside class joined? (completely)