Saw this in Rottterdam last weekend [rvlt festival which was wkd btw] and since then on different machine in the Blue Mountain Club in Bristol.
Aanyway here is a video of a quick demonstration of a similar anomaly [presumably same cause i dunno] where if i turn on or off the distortion it goes white but if i do it with another layer playing.. it doesnt do it....
https://drive.google.com/open?id=0B6ovK ... Hp1UnZFa2s
Just noticed 5.1.2 gonna dl now))
Thanks in advance for any thoughts etc))
Jiminy

Should have mentioned running windows 10 with 980ti in the club and windows 7pro with 770m on laptop.