I’m using AI Perception and have not implemented the affiliation stuff. As such, with the Sight sense, I have to set affiliations to “detect neutral,” and it works. With Hearing, however, I must set it to “detect friendlies” for it to work. This clearly doesn’t make sense. I’ve also found at least a couple of Reddit posts indicating the same thing.
The affiliation settings for sight and hearing should work identically. Something is wrong here.