AI Perception On Perception Updated will never trigger.

[Anthony2361]

I have solved this issue but I still will post it as a question for others to find a potential solution. I’ll post what I did to solve this problem in a comment so that I can mark it as a solution and so that others can easily see the solution.

What’s wrong

On Perception Updated (AIPerception) does not get called when I move my player in front of the character with the AI Perception component

What I did

On an AI Controller Blueprint, I added an AI Perception component. I added an AI Sight Config and left the default values in for that sight config.

In my player character blueprint, I added an AIPerceptionStimuliSource component and on that component, enabled Auto Register as source. Then added AISense_Sight to the register as source as senses array.

Back in my AI controller with the AI Perception component, I added the On Perception Updated (AIPerception) to my event graph and attached a print string.

I then pressed play and walked in front of the character with the AI Controller with the Ai Perception component and nothing got logged!

[Anthony2361]

I solved this by…
inside the AI Perception component, look at the AI Sight config. Now look at the Detection by Detection by Affiliation. You need to enable every checkbox in that drop down. On Perception Updated (AIPerception) started to get triggered and printed strings to the screen after this.