Sprite Instances & Enemy Spawners - Need Help!

Hi guys! I'm still learning from tutorials and I'm trying to make a simple game.

I can't figure out why a new line of sight sprite isn't created for each of my "Bomber Enemy"!

The first bomber enemy gets one, the main enemy spawner works and each attack enemy one gets a line of sight guide of their own. I basically used the same code for the bomber enemy, but it's not working!

Could anyone take a look at my .capx? Any help would be greatly appreciated.

Here is the link

Upheaval.capx

Well, I couldn't figure it out, but I fixed it using a different way to spawn line of sight sprites.

Now, I can't think of a good way to keep all the doors from exploding when my bomber enemy gets to the first one!

Any ideas? Updated file: Upheaval.capx