Config looks ok. But didn't you say you desktop miner only had 2 GPUs? It's currently configured with 3.
Are you running the same version of PhoenixMiner on all miners?
If nothing else works then please send me a full trace together with the use config file, plus the http output of your "desktop" rig.
That was the case originally, but I've since added another card to it.
Here is the html output from phoenix:
https://pastebin.com/m4WEtyrRHere is the trace with JUST that desktop miner enabled (it seems as though it is the only one causing the problem. Any combination of the miners works until I reenable the desktop in the config:
https://pastebin.com/Y6UkYAkZThe only difference I can make out from the output of the desktop rig versus the other miner rigs is the desktop rig has incorrect shares while the miner rigs have rejected shares. I reset the desktop miner to get fresh stats and it now runs fine. All of my miners show up in grafana and the console is error free now. So it would seem as though there is an issue somewhere with how your code handles the incorrect shares (rejected shares are different and working okay).