Operating system: Ubuntu 19.04
Graphics card: NVIDIA GeForce RTX 2080
Broken: 2.80 Beta ; Date: 2019-05-12 22:25 ; Hash: 05f1451d7248 ; Branch: blender2.7
Short description of error
Boolean modifier difference not working properly with plane in certain position.
As you can see in the attached file
With cube hidden:
With cube shown:
Exact steps for others to reproduce the error
I'm not sure if setting cube origin to left bottom is necessary, but that's how I've found the problem. Rotating the cube. Adding plane with boolean modifier difference with cube, and setting it so its left bottom side would align with the cube origin.