Updated actors, on perception updated

Hi everyone!

I’m trying to understand how works the On perception Update, because it suppouse to return an array with all the actors on the valid radius (at least in the sight perception configuration) but in my case only returns the last actor.

So i dont understand what is the difference between the on target perception updated event that only returns one actor.

Array.png

note that the array size is the same when two actors are on range