downloaded blender 2.83. I began to study it. And it turned out that the normals are elongated in one direction. It happens even if you create a new file. I tried everything to turn them into place. What to do?
In the standard Blender interface, you can display three types of normal: normal to vertices, normal to the vertices on the edge and normal to the glands. Typically, it is displayed with pink color to the vertices on the edge, but it does not correspond to the picture presented, since the normals are not out of the vertices. Therefore, according to the image represented, it is difficult to judge the causes of what is happening, you need a file with this cube.
Traditionally, most problems with normal mode is solved through Recalculation of Normals .