My ZSpheres act really weird when I try to preview the adaptive skin and also when I want to turn the ZSpheres in to adaptive skin.
I hope someone can help 
(Im using ZBrush 4r7 on OS X 10.10)
Running a Mac with version Yosemite 10.10.2 , with an ATI Radion HD 5770 1024 MB graphics card. Please help.
I was using the 64bit version in the video. When I tried using ZSpheres in the 32bit version they worked
Maybe you are using the 64bit version too, if so try the 32bit version
I am using ZBrush 4R7 32bit on a Mac OSX Yosemite and I still have the problem… So I guess is with some configuration of Adaptive Skin.
This is NOT a problem on 4r7 64bit Mac OS X 10.7.5 (Lion)