Every actor static mesh actor has Null static mesh property

After I run a Landscape build I got a Message log saying pretty much every one of my near 18,000 actors has “Static Mesh actor has a null StaticMesh Proterty” message attached to it. However, when I look at the assets in editor and in game they look fine. Should I just ignore this or is there something I should do?

I’m having this issue now. I have a feeling it has to do with deleting an invisible component from a prefab. I think this causes every asset tied to the prefab to have this Null error when building a landscape. I just don’t know if this prevents the landscape from building tho?