When using the LandscapeGrassOutput for sampled Grass on a Landscape, it ignores the Landscape Visibility Mask.
Hey Raildex_,
This is a known and reported issue. You can track the report following the link below on our public issues tracker.
Once the issue has been addressed by our engineers the ticket will be updated and reflected in the public tracker. Let me know if you have further questions or need additional assistance.
Cheers,