windows 10 pro version 1803
nvidia gtx 1080
Version 2.80 Beta
Short description of error
Create a new project (File > new > general)
Select the default cube on the scene and export it in fbx (File > export > FBX(.fbx))
Export FBX > Selected Objects
save it in directory "Assets" of a new unity project
In unity 3D, the cube is well exported but the rendering mode in unity 3D of the material shader is Transparent
Return in blender 3D and change the Base Color of the material that is white (R:0.8 G:0.8 B:0.8 A:1) to yellow (R:1 G:1 B:0.0 A:1)
repeat export and replace in unity the new file.
In unity 3D, the new cube is well exported but the rendering mode of the material shader is Opaque now
It is not a problem of geometry but a problem of color.
Thanks a lot