Unable to bind function to overlap event in C++

[phil_me_up]

I think you’re missing the first UPrimitiveComponent parameter. See below for en example

UFUNCTION()
 void OnOverlapBegin(UPrimitiveComponent* OverlappedComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult);

If you add that first component to your method signature (and your cpp of course), then it should work correctly.