Good job. I'm waited amd miner 144_5 for last weeks.
So i tested it on my rig with 5x RX580(4gb) (win10) and blockchain driver
When it starts i see temperature of all gpus growing, then it shows that 2 first gpus found sol's and others are 0. miner wathchdog(?) printed something like - gpu 2 hangs miner restarts. This moment temperature of all gpus going down. Maybe there are any command to disable watchdog?
Then i tested it on my 11 gpu (same RX580 4gb) win10 , but other driver and i see the same problem. after first gpu found solution others still shows 0 sols and miner restarts...
[upd]
Tested different instances of miner first with config - "DEVICES"         : [0,3,4]  other [1,2]  ,but it didn't help. Anyway i can't mine with nore than 3 gpu's..