Comment 1 for bug 1772179

Could you provide more detail, eg what charms etc? Even a juju status output.
I tried to reproduce on a lxd model without luck. I'll try on GCE next.

A deployed a CAAS mysql charm:

$ juju status
Model Controller Cloud/Region Version SLA
caas ian mycaas 2.4-beta3.1 unsupported

App Version Status Scale Charm Store Rev OS Address Notes
mysql mysql-server:5.7 active 1 mysql local 0 kubernetes 10.152.183.56

Unit Workload Agent Address Ports Message
mysql/0* waiting idle 3306/TCP waiting for container

$ juju destroy-controller --destroy-all-models ian -y
Destroying controller
Waiting for hosted model resources to be reclaimed
Waiting on 2 models, 3 machines, 6 applications
Waiting on 2 models, 3 machines, 6 applications
Waiting on 2 models, 3 machines, 5 applications
Waiting on 1 model, 3 machines, 5 applications
Waiting on 1 model, 3 machines, 5 applications
Waiting on 1 model, 3 machines, 5 applications
Waiting on 1 model, 3 machines, 5 applications
Waiting on 1 model, 3 machines, 4 applications
Waiting on 1 model, 3 machines, 1 application
Waiting on 1 model, 3 machines
Waiting on 1 model, 2 machines
Waiting on 1 model, 2 machines
Waiting on 1 model, 2 machines
Waiting on 1 model, 2 machines
Waiting on 1 model, 1 machine
Waiting on 1 model, 1 machine
All hosted models reclaimed, cleaning up controller machines
$