I got a trouble...

My rig have 2 RX560 + 3 RX470 and 1 Vega.

HBCC can be set to en/dis , but slide is fixed:

https://i.imgur.com/ofhjO5u.jpg

Whatever how I change the HBCC en/dis, in XMR-Stak-AMD, hashrate looks like not enabled.

What going on? 

Win10 / Blockchain beta driver / 8G system RAM / 32G VRAM
Vega56 w/vega 64 Aircool bios

All other things looks like normal.

Thanks.