Getting Juju aware of expanded MAAS deployment?

I’d added another rack controller to my MAAS 3.1 deployment to create another AZ. When I try and deploy an app with juju, add —constraint zones=lenovo, a juju status reports that it can’t find it. “suitable availability zone for machine x not found”
Everything I’m reading online says juju should be bootstrapped when MAAS is fully ready. A reboot and long wait hasn’t helped. How can you grow a MAAS setup if juju can’t discover new rack controllers?

hey, @markse1960s,

can you get us a little more info? take a look at this page, just for the types of info that would be helpful (no need to file a bug yet). of particular importance would be the log files. tia.