I have
amd 7970
amd fury x
amd vega rx 64

If I run the miner without devices configuration is tell me the device 2 is not supported ( I suppose the 7970 )  .
If I set "DEVICES":[0,1]  it run on the 7970 and on the vega ! with about 100 sol !
If I set "DEVICES":[1,2] the miner tell me device 2 is not supported .

It seem there is a different device numbering  in the cfg and in the running process.

How can I solve the problem?