Instanced static meshes not culling

I have instanced static mesh objects created by a blueprint. The culling distance is set on them, but no culling is taking place. I’ve seen that this may either be a bug or an issue with a setting in the material. Is there a trick to get HISM to work? (UE4 4.18)

I believe this is how instanced static meshes work. They’re all sent in a batch. If one is rendered then they’ll all be rendered.

That’s a shame is that’s true. Because foliage is instanced and it does cull.