On-Screen Spawn Problem (SOLVED)

Hello, I'm trying a basic shoot em up game, there a problem it can spawn 5 enemy ships from first spawner, then second and third spawners won't work.

Would you give me an explanation why is not working? It seems a reasonable logic, but it gave me neck pain.

Here is .capx

https://dl.dropboxusercontent.com/u/76227787/spawnProblem.capx

I'd do it something like this:

<img src="https://dl.dropboxusercontent.com/u/19921470/spawnProblem.PNG" border="0" />

Spawned is a boolean instance variable that starts as false.

vee41 Thanks!

I didn't know about the booleans are nice workaround than numbers.