System Information
Operating system: Windows 10 64bit 1803
Graphics card: Nvidia GTX 970
Blender Version
Broken: 2.80, 9fa408f51b7, blender2.8, 2018-12-10
Short description of error
Executing the Poly Build command within Edit Mode crashes the program.
Exact steps for others to reproduce the error
Add a mesh cube (for example). Enter Edit Mode. Select Poly Build. Click anywhere in the 3D viewport.