System Information
Operating system: Windows 10 (64)
Graphics card: Nvidia Quadro K600 (display) (Intel Core2 Quad CPU Q8300 @ 2.5 GHz)
Blender Version
Broken:
blender-2.80.0-git.26d5a3625ed-windows64
Following
https://www.youtube.com/watch?v=KcCXM5zCuc0 (23:30 -27:57)
https://www.youtube.com/watch?v=mJooKRnXiLk&t=282s (2:56 -3:37)
"Object has negative Scale, unwrap will operate on a non flipped version of the mesh "