I just started mining Ergo with 6 x RX580 using SRB Miner latest version.
However, the mining program only able to read 3 GPUs instead of all 6.
Error message given:
Couldn’t create dataset on GPU5 [autolykos2]
Couldn’t create dataset on GPU3 [autolykos2]
Couldn’t create dataset on GPU2 [autolykos2]
I’m not sure why you’re experiencing this issue but a good alternative for AMD cards is Team Red Miner. I mine with 7x Radeon VIIs and it works perfectly.