Using updated ethos. Never had this problem before.
Running 2 GPUS max per SATA and power line. I have tried with two motherboards, I initially had a H81 setup for my six 1060's and it only ended up detecting 3/6 (that's after playing around, initially 2/6 for a long time )
Now after pulling out my secondary board, H110. I am receiving only 4/6.