Windows 7 Pro 64-bit SP1
Broken: Blender 2.8 Dated 2018-07-09 22:47 Hash 1112f49
Short description of error
Blender "goes away" when adjusting the Energy value of a Sun Light.
Exact steps for others to reproduce the error
New scene. Add Cube. Add Sun Light. Enable EEVEE (full render mode) Move Sun to the side and use yellow aiming-dot to aim it at the cube. In the Light's information panel, adjust the Energy by Left-Clicking and dragging in the value box.
Alternately, open the attached scene, Select the light, go to the information panel and adjust the light Energy value.