AIPerception crashes 4.14.3

Tried many permutations of linked image- initially I was inheriting Perception from a Parent Class GameAI to a ChildClass AICharacter. Everything worked fine. At one stage I put AIPerception on the child as well as parent (not intentionally, just happened, I understand why I wouldn’t do this).

One day things stopped working, and now no longer work in their most basic form in this blueprint. When I plug this OnTargetPerceptionUpdated (AIPerception) in, I can play in the level fine. Perception works! It works 100% of the time and never just crashes straight away.

When I quit unreal engine however, it crashes (if I push to source control, other computers also crash until I rollback the said AICharacter file. I think when I reload Unreal Engine the crashes fluctuate between on boot, and on loading a level.

I have tried with AIPerception on only the parent, only the child, w/ different configurations on detection by affiliation, and with and without an ai stimulus source on fpscharacter (my debug character). All crash, with the exact same pattern.

Hey vagrant7,

Could you please provide the following information:

  • If you are getting a crash reporter window, please provide your Machine ID and ensure to hit Send & Close on the report.
  • After the crash occurs, please provide the logs from your project’s Saved->Logs folder
  • A set of repro steps we can use to reproduce the issue in a clean project on our end