How to spawn a volume correctly

How to spawn a volume correctly.

I am trying to spawn a volume in game through C++. When I try to spawn the volume like this


GetWorld()->SpawnActor<ABWColourVolume>(ABWColourVolume::StaticClass(), SpawnLocation, FRotator(0, 0, 0));

The volume appears nothing but a dot in the world. Even if I change the brush type to box, still it has no effect. Its still a dot in space.