Problems with multiple raycasting lasers

dropbox.com/s/gw45vy559452i36/raycastingLaser.capx

For my game I am trying to make different laser turrets that point in different directions, and have sine behaviors. I would like the lasers to get blocked by solids.

I followed this amazing ray-casting tutorial to get started

construct.net/en/tutorials/lightning-fast-raycasting-587

It worked like a charm ... but it only works for one ray-casting object at a time.

(You'll see in my project file if you delete the other "sentry" objects, the remaining one is functional.)

I feel like I'm just missing something obvious, but maybe it is a much more complicated problem.

dropbox.com/s/gw45vy559452i36/raycastingLaser.capx

EDIT: Honestly even if there is a way to fake this? By maybe only activating the raycast object that is on screen?

I would advise against using that "lightning fast" raycasting tutorial. I can assure you that no built-in function of Construct 2 can match the accuracy of a real raycast function (Construct 3 added real raycasting, but this topic is about Construct 2). Since Construct 2 was lacking such an important feature, I wrote a plugin to implement real raycasting. Click here to see it in action.

Using multiple raycasts with my plugin is simple enough. You use the "Trace Line" action to perform a raycast, and then, in the following conditions/actions, read off the various bits of info that you want from the raycast using the plugin's expressions. The data from the most recent raycast will remain until another raycast is performed. You can perform as many raycasts in a single frame as your CPU will permit.