I have these kind of OpenGL glitches as long as I use Roon on my Pixel C (i.e. since 2016). My current workaround is to pin the Roon app, but not really workable if you use your tablet for other apps as well.
I have these kind of OpenGL glitches as long as I use Roon on my Pixel C (i.e. since 2016). My current workaround is to pin the Roon app, but not really workable if you use your tablet for other apps as well.