So iv been mining for the past 8-9 months no problem on hive os on 3 different riggs. 1 rig of 580s, 1 rig of 480s and 580s mix and 1 rig of 1070, all 6 gpu rigs. I just updated my 1070 rig to the newest version which was about 30 versions behind. Now my 6 card 1070 gpu rig is only mining on 4 gpus and i have no idea why. Im positive its not a hardware issue and im positive its not a config issue. the only thing that has changed in the past 15 minnutes is this update i installed and going from 6 gpus working to 4