You can check if its collision profile name is one that collides with the Landscape actors. For example, if you know that the “pawn” profile collides with the landscape (by manualy checking the collision profiles in project settings) you can get the profile name of your actor and check if it’s “pawn”. If you have more than one profile that collides with the landscape, you can check if the profile of your actor is in that profile array by using a find item node.