I dont really know anything about these LandscapeRegions, but im pretty sure they are there because I used heightmaps to import a landscape into my map then edited it from there. This is the tutorial I followed: https://www.youtube.com/watch?v=g3i9Ec7rB6Y. As for LandscapeStreamingProxy’s yes they are there, they seem to be the tiny grids that line my map.
Is that normal?