When I import a static mesh with the setting set to ‘Import Normals’, sometimes the normals are messed up, and not right. If I do a fresh import with ‘Import Normals and Tangents’ it looks as intended. However, if I change the setting to ‘Import Normals and Tangents’ after already importing as ‘Import Normals’, then right click the mesh and reimport, it doesn’t work, the normals don’t update. It seems to only accept the option ‘Import Normals and Tangents’ if you chose it on a fresh import.
Using 4.13. Tested on a fresh project. Can’t give any examples as I am working on an extreme NDA project.