System Information
Operating system: Windows
Graphics card: Nvidia 1050
Blender Version
version: 2.80 (sub 47), branch: blender2.7, commit date: 2019-03-08 21:52, hash: a0f2923fd821, type: Release
build date: 08/03/2019, 17:04
Short description of error
Header disappear when the: Blender Preference -> Interface -> Display -> Scale Resolution/ Line Width are different from the default setting (in some value like :[1.68,Thik] , [1.86,auto])
*Just when the topbar collapsed, for instance, in the shading workspace.
Exact steps for others to reproduce the error
Based on the default startup.


