By Design. Noise events need its instigator set, and one cannot assume specific sense being at index 0
AI Perception Hearing Sense is returning false for successfully sensed, even when a Noise Event is being reported.
Found in 4.12 binary. Reproduced in 4.11.2 binary.
1. Open the attached project
2. PIE
Result: The Successfully Sensed boolean is returning false. The boolean is returned On Perception Updated, and Report Noise Event is being used on Tick.
Expected: The Successfully Sensed boolean would be returning true for the Hearing sense.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-31548 in the post.