Distance to Hostile AI

I have brought this up in the Space Engineers general discussions, and have been suggested to pop a report here. But the basics are, I have been trying to make an AI ship using the Event Controller that can test the distance of a locked target from an AI defensive/offensive block and then engage "hostile" mode if in distance and then once destroyed or gone go into "passive" mode.

Yet, from all the testing, even with the radar idea suggested to me and some others it at the most would only consistently recognise if a hostile was there, but will not recognise it disappear or get destroyed.

But the ones I have tested have been using:

- A spinning rotor with an offensive block thruster and event controller that notices when the thruster fires, which worked to a degree but it kept turning it on and off continually.

- Another was a similar rotor setup with a gyro to keep it targeted, and that didn't work either.

- Another was on a rotor with a gyro where the defence block would flee home, or to a beacon on the main ship which would activate something, but once the ship is gone it wouldn't activate anything. This one has been my most successful method so far.

So, unless I am missing something very big, I have a that the Event Controller "Distance to Hostile" prompt is not functioning properly, leading to it not recognising when a grid unlocks or is destroyed. (Side note, I tested this with a player input with a cockpit and it also did not work either, again it would activate but not deactivate.)

Thank you in advance for any and all help in this!