Collection Proxy not loading

Questions
1

Hi,
I am making a game and it have the main map (top view) and from here you can enter in different places, with collection proxies. The problem is, when I try

msg.post("building#first_building", "load")

It says could not be loaded since it was already. I don’t know what is happening, and current threads of this forum and helping pages (irony, maybe?) can’t help me.
In mind that maybe the collection proxy is loaded, try

msg.post("building#first_building", "init")
msg.post("building#first_building", "enable")

And another error appears: could not be initialized since it has not been loaded.

2

Can you load any collection proxies at all or is this the only one that isn’t working? Can you double check that the component with id first_building on the game object with id building is an actual collection proxy?