You can observe visual glitches in our software, under Sierra (20 of september 2016).
You can see the same visual glitches, in the Finder of Sierra.
This is a bug of MacOS Sierra.
Sometimes the problem is due to a MacOS bug
Sometimes the problem is due to a MacOS bug
The Lighting Controller
Re: Bug in Sierra
Problem fixed with MacOS Sierra update 10.12.1 deployed on October 24th (more than 4 weeks later).
The Lighting Controller