Nobody mines with amd gpu?
Try to setup 1 rig to test 24h but can use only 4 gpu, if try with 6 gpu 2 dont work.

Setup my config file like this:

[[mining.gpu_config]]
device = 0
driver = 2

[[mining.gpu_config]]
device = 1
driver = 2

[[mining.gpu_config]]
device = 2
driver = 2

[[mining.gpu_config]]
device = 3
driver = 2

[[mining.gpu_config]]
device = 4
driver = 2

[[mining.gpu_config]]
device = 5
driver = 2

If try with one gpu at time works, but when try all together max 4 gpu works.
Win10 with Adrenalin 20.9.1 and epic-miner 2.3.1