I have a blueprint with a pawn sensor inside of Child Actor Component. When I manually place actor on the level it works fine. When I spawn via Spawn AI from Class the same blueprint then pawn sensor never fired with OnSeePawn binded event.
Solved. Before bind OnSeePawn need again SetChildActorClass (with BP_Sense reference) for ChildComponent. Strange, but working for me.
How did you do this in blueprints?