Bug in the new 4.19 Landscape LOD system? Update: UE-72934 still in 4.23 - occurs if camera FOV>90°

Yup, it’s a tile-based world. Tiles are 505x505 verts, (two verts per metre so 250m.) Currently there are 8 different landscape-meshes being duplicated via level-streaming into about 20 tiles active at a time (and another 20 either unloaded or “visible” set false)