System Information
Operating system: Ubuntu 18.04.1 LTS
Graphics card: Richland [Radeon HD 8550G]
Blender Version
2.8 Beta, 26d5a3625ed, 2018-11-29 15:57
Short description of error
In [Object Mode], active mesh/nurbs/curve/metaball object is solid orange (default color) and open space in viewport is white, overlaying the grid & relationship lines.
Active mesh (only) object is invisible (or behind white overlay?) in wireframe shading
When disabling [Outline Selected] in [Overlay], viewport is normal.