Overlaps against occluded actors not working?

I’m experiencing a somewhat strange behavior: when I use ComponentOverlapActors to get a list of actors that overlap a component, I notice that some actors, seemingly ones that are being occluded from view i.e. not visible from the camera’s point of view are not getting returned in the list of overlapping actors by the ComponentOverlapActors function. I’ve also tried using AActor’s GetOverlappingActors (C++), to no avail.

Overlaps work after rotating the occluded actors by 180 degrees so that they’re not occluded anymore.

Does UE4 not calculate overlaps against occluded actors by default? Is this a bug?

This hasn’t reappeared in a while so I’m closing the issue.