XMRig Miner 6.22.0 is out and it works with AM i tested it with the upload custom software feature and it works great with AM .
Just a heads up sense it hasn't updated to XMRig Miner 6.22.0 yet .
The reason XmRig hasn't been updated for a while is that many users run into issues with the more recent versions. I just tested with 6.22 again now and it's still broken and reports half API output that is difficult to process. I've had similar reports for other users as well so unfortunately this is some scenario where XmRig runs fine on some systems while it's failing on other.