Win10 Pro 64bit (Build 1804) + Nvidia GeForce 1070
Broken: 2.80.35 (Hash: 4c31bed6b46) blender-2.80-4c31bed6b46-win64.zip
Worked: none of the 2.8x versions (as per T55723)
Short description of error
In the 3D View Shading options, when selecting Solid or LookDev and then the lighting type, the previews are all displayed twice.
Exact steps for others to reproduce the error
Simply open Blender 2.8 and change 3D View display type. There aren't duplicate files inside the subfolders inside \2.80\datafiles\studiolights. Please, see the following screenshots:
Loading factory setting doesn't change anything. I don't see any specific error message in the console in debug mode.