I have been using Terrain heightmaps for quite some time. Other than brain farts I have had no issues. My development system was running low on hard drive space so I removed Unity and Visual Studio (Thinking I was avoiding problems as both were installed on another drive). Cloning and re-installation went off without a hitch... UNTIL I open up my project with the same version of Unity (Version 2020.3.3f1)and try to Import New Asset and the file explorer does not even show my .raw files. Fine.. So I try to drag and drop which works until I try to make the files Read/write enabled but the inspector shows no options. The only files that appear to be affected are the RAW file extensions. Image cap shows Import new asset explorer, file explorer, and png's rendered in project assets while RAW are just the icon of adobe. Ideas?