Hi.
There is no way to. make afterburner work after 3 gpu with new amd adrenalin driver. I tried ddu and i installed from lower version of 18.xxxx to higher but no luck. it works with 1 or 2 rx570 when you installed 3rd card it doesn't allow me to OC my gpu cards.Rx 570 cards are there but all cards are Gray out. so you cannot change anything there.  Anybody has got idea or advice? Many thanks in advance.