Can we run two instances of Claymore miner? One for rx 4xx series, second for old cards?
Too lazy to read?
A workaround for rigs with mixed cards (Polaris and old cards): start two miners with "-di" option, one for Polaris cards and second for other cards. Use "-mport 0" option to disable port for remote management and avoid red message in second miner.
I will fix it soon.